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Finding the Fourth Proportional to 15,999.10, 22,077.90 and 8,924.10

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Solution

The fourth proportional to 15,999.10, 22,077.90 and 8,924.10 is: 12,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.10 : 22,077.90 = 8,924.10 : x
  2. Step 2: Convert to fraction form
    15,999.10/22,077.90 = 8,924.10/x
  3. Step 3: Cross multiply
    15,999.10x = 22,077.90 × 8,924.10
  4. Step 4: Simplify right side
    15,999.10x = 197,025,387.39
  5. Step 5: Solve for x
    x = 197,025,387.39/15,999.10
  6. Step 6: Final answer
    x = 12,314.78

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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.