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Finding the Fourth Proportional to 13,747.92, 18,972.32 and 7,460.44

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Solution

The fourth proportional to 13,747.92, 18,972.32 and 7,460.44 is: 10,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.92 : 18,972.32 = 7,460.44 : x
  2. Step 2: Convert to fraction form
    13,747.92/18,972.32 = 7,460.44/x
  3. Step 3: Cross multiply
    13,747.92x = 18,972.32 × 7,460.44
  4. Step 4: Simplify right side
    13,747.92x = 141,541,855.02
  5. Step 5: Solve for x
    x = 141,541,855.02/13,747.92
  6. Step 6: Final answer
    x = 10,295.51

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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.