proportional: Meaning and Definition of

pro•por•tion•al

1. having due proportion; corresponding.
2. being in or characterized by proportion.
3. of, pertaining to, or based on proportion; relative.
4. The quantities
1. (of two quantities) having the same or a constant ratio or relation:The quantitiesy and x are proportional if y/x = k, where k is the constant of proportionality.
2. (of a first quantity with respect to a second quantity) a constant multiple of:The quantityy is proportional to x if y = kx, where k is the constant of proportionality.