Respuesta :

8, 12, 18, 27

12 ÷ 8 = 1¹/₂
18 ÷ 12 = 1¹/₂
27 ÷ 18 = 1¹/₂

[tex]a_{n} = r * a_{n - 1}[/tex]
[tex]a_{n}} = 1\frac{1}{2}a_{n - 1}[/tex]