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Home > AC > Chapter 4 > Lesson 4.1.7 > Problem 4-66


Josie and Jules are building a model car. They find that the real car is inches tall and  inches long. They decide to make their model inches tall, but now they are having a disagreement. Josie thinks that their model should be inches long and Jules thinks it should be inches long. Help them settle their argument by deciding if either of them is correct. Explain how you know exactly how long their model should be.

Set up a proportion

Substitute in the given information.

Multiply both sides by to get it in the numerator.

Multiply both sides by to remove the fractions.

Solve for .

Josie is correct.