Marita's nose is 2 inches long and her head is 9 inches tall. Assume Mount Rushmore was carved using

Marita's nose is 2 inches long and her head is 9 inches tall. Assume Mount Rushmore was carved using the same ratio. If Teddy Roosevelt's head is 60 feet tall, how long should his nose be? Round to the nearest foot, if necessary.

Set up a proportion/ratio of head height to nose height where n is the nose height for 60 feet head height:
9/2 = 60/n

Using our proportion calculator, we see that:
n = 13.33 rounded to the nearest foot is 13 feet