4,5:0,6= x:2,4

To solve the proportion \( \frac{4.5}{0.6} = \frac{x}{2.4} \), you can cross-multiply:

\[ 4.5 \cdot 2.4 = 0.6 \cdot x \]

Calculating \( 4.5 \cdot 2.4 \):

\[ 4.5 \times 2.4 = 10.8 \]

Now the equation becomes:

\[ 10.8 = 0.6 \cdot x \]

To find \( x \), divide both sides by \( 0.6 \):

\[ x = \frac{10.8}{0.6} \]

Calculating the division:

\[ x = 18 \]

So the value of \( x \) is \( 18 \).