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Finding the Fourth Proportional to 8,740.43, 12,061.80 and 4,761.44

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Solution

The fourth proportional to 8,740.43, 12,061.80 and 4,761.44 is: 6,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.43 : 12,061.80 = 4,761.44 : x
  2. Step 2: Convert to fraction form
    8,740.43/12,061.80 = 4,761.44/x
  3. Step 3: Cross multiply
    8,740.43x = 12,061.80 × 4,761.44
  4. Step 4: Simplify right side
    8,740.43x = 57,431,476.68
  5. Step 5: Solve for x
    x = 57,431,476.68/8,740.43
  6. Step 6: Final answer
    x = 6,570.79

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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.