Thread: Water fountain scale factor , volume surface area

You decide that 0.25 inch in your model of a cylinder shape water fountain corresponds to 12 inches of the actual tower.

The top of the tower has a diameter of 20 feet .
The height of the actual tower is 32ft.

Find the volume of the actual tower . ( I got pi*3200ft(cube) )

Now use the result above to find the volume o the scale model I get confused here

Originally Posted by vaironxxrd

You decide that 0.25 inch in your model of a cylinder shape water fountain corresponds to 12 inches of the actual tower.

The top of the tower has a diameter of 20 feet .
The height of the actual tower is 32ft.

Find the volume of the actual tower . ( I got pi*3200ft(cube) )

Now use the result above to find the volume o the scale model I get confused here

A scale is nothing but a proportion:



Now multiply this equation by "real" and you'll get:



Plug in the real values to get the model measures:



and so on ...