Home / 12,937.92-17,861.12-8,711.20

Finding the Fourth Proportional to 12,937.92, 17,861.12 and 8,711.20

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Solution

The fourth proportional to 12,937.92, 17,861.12 and 8,711.20 is: 12,026.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.92 : 17,861.12 = 8,711.20 : x
  2. Step 2: Convert to fraction form
    12,937.92/17,861.12 = 8,711.20/x
  3. Step 3: Cross multiply
    12,937.92x = 17,861.12 × 8,711.20
  4. Step 4: Simplify right side
    12,937.92x = 155,591,788.54
  5. Step 5: Solve for x
    x = 155,591,788.54/12,937.92
  6. Step 6: Final answer
    x = 12,026.03

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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.