Home / 10,092.90-15,135.30-3,850.78

Finding the Fourth Proportional to 10,092.90, 15,135.30 and 3,850.78

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Solution

The fourth proportional to 10,092.90, 15,135.30 and 3,850.78 is: 5,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,092.90 : 15,135.30 = 3,850.78 : x
  2. Step 2: Convert to fraction form
    10,092.90/15,135.30 = 3,850.78/x
  3. Step 3: Cross multiply
    10,092.90x = 15,135.30 × 3,850.78
  4. Step 4: Simplify right side
    10,092.90x = 58,282,710.53
  5. Step 5: Solve for x
    x = 58,282,710.53/10,092.90
  6. Step 6: Final answer
    x = 5,774.62

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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.