Home / 13,788.60-20,685.17-5,468.66

Finding the Fourth Proportional to 13,788.60, 20,685.17 and 5,468.66

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Solution

The fourth proportional to 13,788.60, 20,685.17 and 5,468.66 is: 8,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.60 : 20,685.17 = 5,468.66 : x
  2. Step 2: Convert to fraction form
    13,788.60/20,685.17 = 5,468.66/x
  3. Step 3: Cross multiply
    13,788.60x = 20,685.17 × 5,468.66
  4. Step 4: Simplify right side
    13,788.60x = 113,120,031.00
  5. Step 5: Solve for x
    x = 113,120,031.00/13,788.60
  6. Step 6: Final answer
    x = 8,203.88

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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.