As you know, the "means" are the inside terms, b and c, and the
"extremes" are the outside terms, a and d, in the proportion we might
write in any of these ways:
[tex] \dfrac{a}{b} = \dfrac{c}{d} [/tex].
Then:
1. For the proportion [tex] \dfrac{4}{24} = \dfrac{2}{12} [/tex] the means are 24 and 2 and the extremes are 4 and 12.
2. For the proportion [tex] \dfrac{24}{6} = \dfrac{16}{4} [/tex] the means are 6 and 16 and the extremes are 24 and 4.
3. For the proportion [tex] \dfrac{4}{8} = \dfrac{8}{16} [/tex] the means are 8 and 8 and the extremes are 4 and 16.
4. For the proportion [tex] \dfrac{6}{50} = \dfrac{3}{25} [/tex] the means are 50 and 3 and the extremes are 6 and 25.
