9n | |
4 |
= |
9 |
1 |
If 2 proportions are equal:
we can cross multiply to get:
Numerator 1 Denominator 1
=
Numerator 2 Denominator 2 Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2
Numerator 1 = | Denominator 1 * Numerator 2 |
Denominator 2 |
9n = | 4 * 9 |
1 |
9n = | 36 |
1 |
9n = 36
9n | |
9 |
= |
36 |
9 |