Home / 13,255.11-19,877.79-3,892.73

Finding the Fourth Proportional to 13,255.11, 19,877.79 and 3,892.73

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Solution

The fourth proportional to 13,255.11, 19,877.79 and 3,892.73 is: 5,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.11 : 19,877.79 = 3,892.73 : x
  2. Step 2: Convert to fraction form
    13,255.11/19,877.79 = 3,892.73/x
  3. Step 3: Cross multiply
    13,255.11x = 19,877.79 × 3,892.73
  4. Step 4: Simplify right side
    13,255.11x = 77,378,770.08
  5. Step 5: Solve for x
    x = 77,378,770.08/13,255.11
  6. Step 6: Final answer
    x = 5,837.66

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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.