[tex] \frac{6}{4} = \frac{x}{12} = \frac{30}{y} = \frac{z}{16} [/tex]
[tex] \frac{6}{4} = \frac{x}{12} = > x = \frac{6 \times 12}{4} = 6 \times 3 = 18[/tex]
[tex] \frac{x}{12} = \frac{30}{y} [/tex]
[tex] \frac{18}{12} = \frac{30}{y} = > y = \frac{30 \times 12}{18} = \frac{5 \times 12}{3} = 5 \times 4 = 20[/tex]
[tex] \frac{30}{y} = \frac{z}{16} [/tex]
[tex] \frac{30}{20} = \frac{z}{16} = > z = \frac{30 \times 16}{20} = \frac{3 \times 16}{2} = 3 \times 8 = 24[/tex]
