Home / 10,092.45-15,132.60-5,171.70

Finding the Fourth Proportional to 10,092.45, 15,132.60 and 5,171.70

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Solution

The fourth proportional to 10,092.45, 15,132.60 and 5,171.70 is: 7,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,092.45 : 15,132.60 = 5,171.70 : x
  2. Step 2: Convert to fraction form
    10,092.45/15,132.60 = 5,171.70/x
  3. Step 3: Cross multiply
    10,092.45x = 15,132.60 × 5,171.70
  4. Step 4: Simplify right side
    10,092.45x = 78,261,267.42
  5. Step 5: Solve for x
    x = 78,261,267.42/10,092.45
  6. Step 6: Final answer
    x = 7,754.44

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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.