the length of a wall in a floor plan is 6 1/2 inches.the actual wall is 78 feet long. find the scale of the floor plan

The height of a building is 3 3/8 inches on a scale drawing. Find the actual height of the building if the scale used is 1inch:4feet.

This is basically ratios and proportions, pleas help

1 answer

each inch on the plan represents 12 actual feet, because 6.5 * 12 = 78 (78ft / 6.5in) = 12ft/in

3 3/8 * 4 = 13 1/2 ft