<p><strong>Adjective</strong></p><ul><li>having due proportion; corresponding.</li><li>Synonyms: proportionate, consonant, accordant, harmonious.</li><li>being in or characterized by proportion.</li><li>of, relating to, or based on proportion; relative.</li><li>Mathematics: (of two quantities) having the same or a constant ratio or relation: The quantities y and x are proportional if y/x = k, where k is the constant of proportionality.</li><li>(of a first quantity with respect to a second quantity) a constant multiple of: The quantity y is proportional to x if y = kx, where k is the constant of proportionality.</li></ul>