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Finding the Fourth Proportional to 11,343.87, 15,657.17 and 6,630.89

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Solution

The fourth proportional to 11,343.87, 15,657.17 and 6,630.89 is: 9,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.87 : 15,657.17 = 6,630.89 : x
  2. Step 2: Convert to fraction form
    11,343.87/15,657.17 = 6,630.89/x
  3. Step 3: Cross multiply
    11,343.87x = 15,657.17 × 6,630.89
  4. Step 4: Simplify right side
    11,343.87x = 103,820,860.54
  5. Step 5: Solve for x
    x = 103,820,860.54/11,343.87
  6. Step 6: Final answer
    x = 9,152.16

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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.