 # -8/9x > -61/81

## Enter proportion values below:

 ---------- =<≤>≥ ----------

 -8 9x
 >
 -61 81

## Define the proportion formula:

If 2 proportions are equal to each other, then we can cross multiply to get:
 Numerator 1 Denominator 1
 >
 Numerator 2 Denominator 2

Numerator 1 * Denominator 2 > Denominator 1 * Numerator 2

## Solving for Denominator 1 we get:

 Denominator 1  > Numerator 1 * Denominator 2 Numerator 2

## Evaluating and simplfying using your input values, we get:

 9x  > -8 * 81 -61

 9x  > -648 -61

9x  >  10.622950819672

## Divide each side by 9

Because we have an inequality and we are dividing by a positive number, we keep the same sign >
 9x 9
 >
 10.623 9

x > 1.1803278688525

x > 1.1803278688525

### How does the Proportion Calculator work?

1) Calculates the missing link of 2 equivalent proportions or ratios.
2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or not equivalent. Note: You can use all allowable operators such as =,<,≤,>,≥
This calculator has 4 inputs.

### What 3 formulas are used for the Proportion Calculator?

1. a/b=c/d

For more math formulas, check out our Formula Dossier

### What 3 concepts are covered in the Proportion Calculator?

equivalent
equal in value, amount, function, meaning
proportion
n equation in which two ratios are set equal to each other
a/b = c/d
ratio
indicates how many times one number contains another