\[\boxed{\text{4.\ 187}}\]
\[\pi \approx 3;\ \ R = 6\ см;\ \ h = 15\ см.\]
\[V_{цил} = S_{круга} \cdot h = \pi R^{2} \cdot h =\]
\[= 3 \cdot 6^{2} \cdot 15 = 36 \cdot 45 =\]
\[= 1620\ \left( см^{3} \right).\]
\[V_{кон} = 1620\ :3 = 540\ \left( см^{3} \right).\]