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Finding the Fourth Proportional to 11,380.60, 15,704.48 and 6,344.12

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Solution

The fourth proportional to 11,380.60, 15,704.48 and 6,344.12 is: 8,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.60 : 15,704.48 = 6,344.12 : x
  2. Step 2: Convert to fraction form
    11,380.60/15,704.48 = 6,344.12/x
  3. Step 3: Cross multiply
    11,380.60x = 15,704.48 × 6,344.12
  4. Step 4: Simplify right side
    11,380.60x = 99,631,160.78
  5. Step 5: Solve for x
    x = 99,631,160.78/11,380.60
  6. Step 6: Final answer
    x = 8,754.47

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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.