The total length of a measurement from a U.S. customary scaled drawing of 1/8 inch is 3.5 inches. What is the actual length?
Step one:
Convert the scale (1/8 inch) into a decimal format.
1/8 inch scale is 1 divided by 8 = 0.125 inches
Step two:
Determine the measurement on the scale drawing using a ruler. In this example our measurement is 3.5 inches.
Step three:
Divide the measurement by the scale decimal value. In other words, how many 0.125 units go into the measured length?
3.5 / 0.125 = 28 feet ; 8.53