$\frac{27}{P}=\frac{3}{4 / 3} \Rightarrow P=12 \mathrm{\,W}$

in parallel combination

$\mathrm{P}=\mathrm{P}_{1}+\mathrm{P}_{2}$ and $\mathrm{P} \propto \frac{1}{\mathrm{R}} \Rightarrow \frac{\mathrm{P}_{1}}{\mathrm{P}_{2}}=\frac{4}{2}$

$\Rightarrow \mathrm{P}_{2}=\frac{\mathrm{P}_{1}}{2} \Rightarrow \mathrm{P}=12=\mathrm{P}_{1}+\mathrm{P}_{2}$

$12=\frac{3 \mathrm{P}_{1}}{2} \Rightarrow \mathrm{P}_{1}=8 \mathrm{\,W}$