Home / 10,356.80-15,517.92-7,273.28

Finding the Fourth Proportional to 10,356.80, 15,517.92 and 7,273.28

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Solution

The fourth proportional to 10,356.80, 15,517.92 and 7,273.28 is: 10,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.80 : 15,517.92 = 7,273.28 : x
  2. Step 2: Convert to fraction form
    10,356.80/15,517.92 = 7,273.28/x
  3. Step 3: Cross multiply
    10,356.80x = 15,517.92 × 7,273.28
  4. Step 4: Simplify right side
    10,356.80x = 112,866,177.18
  5. Step 5: Solve for x
    x = 112,866,177.18/10,356.80
  6. Step 6: Final answer
    x = 10,897.78

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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.