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Finding the Fourth Proportional to 11,385.01, 15,711.40 and 6,349.56

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Solution

The fourth proportional to 11,385.01, 15,711.40 and 6,349.56 is: 8,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.01 : 15,711.40 = 6,349.56 : x
  2. Step 2: Convert to fraction form
    11,385.01/15,711.40 = 6,349.56/x
  3. Step 3: Cross multiply
    11,385.01x = 15,711.40 × 6,349.56
  4. Step 4: Simplify right side
    11,385.01x = 99,760,476.98
  5. Step 5: Solve for x
    x = 99,760,476.98/11,385.01
  6. Step 6: Final answer
    x = 8,762.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.