Question

For the scale model of an airplane Jamie is building, 4 feet is proportional to 6 inches. If the length of the airplane Jamie is modeling is 20 feet, what will be the length of his model ?

Answer 1

We can set up a proportion to solve for the length of the model:

4 feet / 6 inches = 20 feet / x

Cross-multiplying, we get:

4 feet * x = 6 inches * 20 feet

Simplifying, we get:

4x = 120

Dividing both sides by 4, we get:

x = 30 inches

Therefore, Jamie's airplane model will be 30 inches long.