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\frac{4\times 7}{3\times 7+5}=\frac{x}{\frac{5}{11}}
Divide 4 by \frac{3\times 7+5}{7} by multiplying 4 by the reciprocal of \frac{3\times 7+5}{7}.
\frac{28}{3\times 7+5}=\frac{x}{\frac{5}{11}}
Multiply 4 and 7 to get 28.
\frac{28}{21+5}=\frac{x}{\frac{5}{11}}
Multiply 3 and 7 to get 21.
\frac{28}{26}=\frac{x}{\frac{5}{11}}
Add 21 and 5 to get 26.
\frac{14}{13}=\frac{x}{\frac{5}{11}}
Reduce the fraction \frac{28}{26} to lowest terms by extracting and canceling out 2.
\frac{x}{\frac{5}{11}}=\frac{14}{13}
Swap sides so that all variable terms are on the left hand side.
x=\frac{14}{13}\times \frac{5}{11}
Multiply both sides by \frac{5}{11}.
x=\frac{14\times 5}{13\times 11}
Multiply \frac{14}{13} times \frac{5}{11} by multiplying numerator times numerator and denominator times denominator.
x=\frac{70}{143}
Do the multiplications in the fraction \frac{14\times 5}{13\times 11}.