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Finding the Fourth Proportional to 10,368.80, 15,553.20 and 9,753.20

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Solution

The fourth proportional to 10,368.80, 15,553.20 and 9,753.20 is: 14,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.80 : 15,553.20 = 9,753.20 : x
  2. Step 2: Convert to fraction form
    10,368.80/15,553.20 = 9,753.20/x
  3. Step 3: Cross multiply
    10,368.80x = 15,553.20 × 9,753.20
  4. Step 4: Simplify right side
    10,368.80x = 151,693,470.24
  5. Step 5: Solve for x
    x = 151,693,470.24/10,368.80
  6. Step 6: Final answer
    x = 14,629.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.