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Finding the Fourth Proportional to 15,280.92, 22,884.48 and 8,687.12

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Solution

The fourth proportional to 15,280.92, 22,884.48 and 8,687.12 is: 13,009.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.92 : 22,884.48 = 8,687.12 : x
  2. Step 2: Convert to fraction form
    15,280.92/22,884.48 = 8,687.12/x
  3. Step 3: Cross multiply
    15,280.92x = 22,884.48 × 8,687.12
  4. Step 4: Simplify right side
    15,280.92x = 198,800,223.90
  5. Step 5: Solve for x
    x = 198,800,223.90/15,280.92
  6. Step 6: Final answer
    x = 13,009.70

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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.