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Finding the Fourth Proportional to 14,581.92, 20,125.89 and 8,613.30

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Solution

The fourth proportional to 14,581.92, 20,125.89 and 8,613.30 is: 11,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.92 : 20,125.89 = 8,613.30 : x
  2. Step 2: Convert to fraction form
    14,581.92/20,125.89 = 8,613.30/x
  3. Step 3: Cross multiply
    14,581.92x = 20,125.89 × 8,613.30
  4. Step 4: Simplify right side
    14,581.92x = 173,350,328.34
  5. Step 5: Solve for x
    x = 173,350,328.34/14,581.92
  6. Step 6: Final answer
    x = 11,888.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.