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Finding the Fourth Proportional to 18,755.52, 25,881.92 and 10,372.16

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Solution

The fourth proportional to 18,755.52, 25,881.92 and 10,372.16 is: 14,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.52 : 25,881.92 = 10,372.16 : x
  2. Step 2: Convert to fraction form
    18,755.52/25,881.92 = 10,372.16/x
  3. Step 3: Cross multiply
    18,755.52x = 25,881.92 × 10,372.16
  4. Step 4: Simplify right side
    18,755.52x = 268,451,415.35
  5. Step 5: Solve for x
    x = 268,451,415.35/18,755.52
  6. Step 6: Final answer
    x = 14,313.20

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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.