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Finding the Fourth Proportional to 13,616.46, 20,425.84 and 3,755.74

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Solution

The fourth proportional to 13,616.46, 20,425.84 and 3,755.74 is: 5,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,616.46 : 20,425.84 = 3,755.74 : x
  2. Step 2: Convert to fraction form
    13,616.46/20,425.84 = 3,755.74/x
  3. Step 3: Cross multiply
    13,616.46x = 20,425.84 × 3,755.74
  4. Step 4: Simplify right side
    13,616.46x = 76,714,144.32
  5. Step 5: Solve for x
    x = 76,714,144.32/13,616.46
  6. Step 6: Final answer
    x = 5,633.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.