Home / 13,755.83-20,630.81-3,892.46

Finding the Fourth Proportional to 13,755.83, 20,630.81 and 3,892.46

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Solution

The fourth proportional to 13,755.83, 20,630.81 and 3,892.46 is: 5,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.83 : 20,630.81 = 3,892.46 : x
  2. Step 2: Convert to fraction form
    13,755.83/20,630.81 = 3,892.46/x
  3. Step 3: Cross multiply
    13,755.83x = 20,630.81 × 3,892.46
  4. Step 4: Simplify right side
    13,755.83x = 80,304,664.00
  5. Step 5: Solve for x
    x = 80,304,664.00/13,755.83
  6. Step 6: Final answer
    x = 5,837.86

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Why These Related Problems?

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