Chapter 6.2, Problem 14E

To determine

To solve the proportion by using equivalent ratios.

Answer to Problem 14E

The solution of the given proportion is $y=99$ .

Explanation of Solution

Given information : the proportion is given as,

  $\frac{11}{9}=\frac{y}{81}$

Calculation : the given proportion can be calculated as,

  $\begin{array}{l}\frac{11}{9}=\frac{y}{81}\\ \frac{11}{9\times 9}=\frac{y}{81}\left[\text{compare denominators}\right]\\ \frac{11\times 9}{81}=\frac{y}{81}\left[\text{find }y\right]\\ y=11\times 9\\ y=99\end{array}$

Because,

  $\begin{array}{l}11\times 9=99\\ y=99\end{array}$