What is this? Please answer if you know what u are doing

Answer:
[tex]m = 6[/tex]
Step-by-step explanation:
[tex] \frac{15}{10} = \frac{m}{4} [/tex]
[tex]15 \times 4 = 10m[/tex]
[tex]60 = 10m[/tex]
[tex] \frac{60}{10} = \frac{10m}{10} [/tex]
[tex]6 = m[/tex]