Question

felix built a ramp based on the scale drawing below. if the height of felixs ramp is 6 inches from the ground, how long is the part of the ramp that is on the ground?

Explanation:

Step1: Set up proportion

Let $x$ be the length of the part of the ramp on the ground. The ratio of height to base in the scale - drawing is $\frac{1}{12}$. In the actual ramp, the height is 6 inches and the base is $x$ inches. So, we have the proportion $\frac{1}{12}=\frac{6}{x}$.

Step2: Cross - multiply

Cross - multiplying gives us $1\times x = 12\times6$.

Step3: Solve for $x$

$x = 72$ inches.

Answer:

72 in