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Finding the Fourth Proportional to 10,108.10, 15,162.15 and 9,200.90

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Solution

The fourth proportional to 10,108.10, 15,162.15 and 9,200.90 is: 13,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.10 : 15,162.15 = 9,200.90 : x
  2. Step 2: Convert to fraction form
    10,108.10/15,162.15 = 9,200.90/x
  3. Step 3: Cross multiply
    10,108.10x = 15,162.15 × 9,200.90
  4. Step 4: Simplify right side
    10,108.10x = 139,505,425.94
  5. Step 5: Solve for x
    x = 139,505,425.94/10,108.10
  6. Step 6: Final answer
    x = 13,801.35

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Double scale
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Similar ratio
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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.