9514 1404 393
Answer:
5/4
Step-by-step explanation:
We notice that one of the sides in the larger triangle has a length that is expressed as a fraction. For simplicity of calculation, we'll choose to use the other side of that triangle, which has an integer length.
The ratio of long sides is ...
larger : smaller = 5 : 4
The scale factor is 5/4.
_____
Check
(15/4)/3 = 5/4 . . . . so, the fractional side has the same scale factor, as it should.
