Home / 12,528.60-18,756.10-6,591.43

Finding the Fourth Proportional to 12,528.60, 18,756.10 and 6,591.43

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Solution

The fourth proportional to 12,528.60, 18,756.10 and 6,591.43 is: 9,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.60 : 18,756.10 = 6,591.43 : x
  2. Step 2: Convert to fraction form
    12,528.60/18,756.10 = 6,591.43/x
  3. Step 3: Cross multiply
    12,528.60x = 18,756.10 × 6,591.43
  4. Step 4: Simplify right side
    12,528.60x = 123,629,520.22
  5. Step 5: Solve for x
    x = 123,629,520.22/12,528.60
  6. Step 6: Final answer
    x = 9,867.78

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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.