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Finding the Fourth Proportional to 8,372.71, 11,554.92 and 5,535.17

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Solution

The fourth proportional to 8,372.71, 11,554.92 and 5,535.17 is: 7,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372.71 : 11,554.92 = 5,535.17 : x
  2. Step 2: Convert to fraction form
    8,372.71/11,554.92 = 5,535.17/x
  3. Step 3: Cross multiply
    8,372.71x = 11,554.92 × 5,535.17
  4. Step 4: Simplify right side
    8,372.71x = 63,958,388.76
  5. Step 5: Solve for x
    x = 63,958,388.76/8,372.71
  6. Step 6: Final answer
    x = 7,638.91

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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.