Question

Solve the proportion.
11/12
=
55/u
u=

Answer 1

To solve the proportion \( \frac{11}{12} = \frac{55}{u} \), we can use cross-multiplication. This involves multiplying the numerator of one fraction by the denominator of the other fraction.

Cross-multiplying gives us:

\[
11 \cdot u = 12 \cdot 55
\]

Now we can calculate \( 12 \cdot 55 \):

\[
12 \cdot 55 = 660
\]

So we have:

\[
11u = 660
\]

Now, solve for \( u \) by dividing both sides by 11:

\[
u = \frac{660}{11}
\]

Calculating the division:

\[
u = 60
\]

Thus, the solution is:

\[
u = 60
\]