Finding the Fourth Proportional to 10, 14.99 and 5.99
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Solution
The fourth proportional to 10, 14.99 and 5.99 is: 8.98
Step by Step Solution
- Step 1: Write the proportion equation
10 : 14.99 = 5.99 : x - Step 2: Convert to fraction form
10/14.99 = 5.99/x - Step 3: Cross multiply
10x = 14.99 × 5.99 - Step 4: Simplify right side
10x = 89.79 - Step 5: Solve for x
x = 89.79/10 - Step 6: Final answer
x = 8.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.