Home / 10,640.70-15,966.54-5,092.92

Finding the Fourth Proportional to 10,640.70, 15,966.54 and 5,092.92

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Solution

The fourth proportional to 10,640.70, 15,966.54 and 5,092.92 is: 7,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.70 : 15,966.54 = 5,092.92 : x
  2. Step 2: Convert to fraction form
    10,640.70/15,966.54 = 5,092.92/x
  3. Step 3: Cross multiply
    10,640.70x = 15,966.54 × 5,092.92
  4. Step 4: Simplify right side
    10,640.70x = 81,316,310.90
  5. Step 5: Solve for x
    x = 81,316,310.90/10,640.70
  6. Step 6: Final answer
    x = 7,642.01

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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.