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Finding the Fourth Proportional to 8,606.72, 11,876.40 and 5,247.92

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Solution

The fourth proportional to 8,606.72, 11,876.40 and 5,247.92 is: 7,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.72 : 11,876.40 = 5,247.92 : x
  2. Step 2: Convert to fraction form
    8,606.72/11,876.40 = 5,247.92/x
  3. Step 3: Cross multiply
    8,606.72x = 11,876.40 × 5,247.92
  4. Step 4: Simplify right side
    8,606.72x = 62,326,397.09
  5. Step 5: Solve for x
    x = 62,326,397.09/8,606.72
  6. Step 6: Final answer
    x = 7,241.60

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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.