Home / 13,591.76-20,392.83-5,277.61

Finding the Fourth Proportional to 13,591.76, 20,392.83 and 5,277.61

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Solution

The fourth proportional to 13,591.76, 20,392.83 and 5,277.61 is: 7,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.76 : 20,392.83 = 5,277.61 : x
  2. Step 2: Convert to fraction form
    13,591.76/20,392.83 = 5,277.61/x
  3. Step 3: Cross multiply
    13,591.76x = 20,392.83 × 5,277.61
  4. Step 4: Simplify right side
    13,591.76x = 107,625,377.15
  5. Step 5: Solve for x
    x = 107,625,377.15/13,591.76
  6. Step 6: Final answer
    x = 7,918.43

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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.