Finding the Fourth Proportional to 10,384.50, 15,581.31 and 5,452.99
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Solution
The fourth proportional to 10,384.50, 15,581.31 and 5,452.99 is: 8,181.88
Step by Step Solution
- Step 1: Write the proportion equation
10,384.50 : 15,581.31 = 5,452.99 : x - Step 2: Convert to fraction form
10,384.50/15,581.31 = 5,452.99/x - Step 3: Cross multiply
10,384.50x = 15,581.31 × 5,452.99 - Step 4: Simplify right side
10,384.50x = 84,964,727.62 - Step 5: Solve for x
x = 84,964,727.62/10,384.50 - Step 6: Final answer
x = 8,181.88
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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.