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Finding the Fourth Proportional to 11,081.62, 15,287.88 and 6,364.90

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Solution

The fourth proportional to 11,081.62, 15,287.88 and 6,364.90 is: 8,780.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.62 : 15,287.88 = 6,364.90 : x
  2. Step 2: Convert to fraction form
    11,081.62/15,287.88 = 6,364.90/x
  3. Step 3: Cross multiply
    11,081.62x = 15,287.88 × 6,364.90
  4. Step 4: Simplify right side
    11,081.62x = 97,305,827.41
  5. Step 5: Solve for x
    x = 97,305,827.41/11,081.62
  6. Step 6: Final answer
    x = 8,780.83

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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.