Home / 12,589.43-18,884.15-4,270.29

Finding the Fourth Proportional to 12,589.43, 18,884.15 and 4,270.29

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Solution

The fourth proportional to 12,589.43, 18,884.15 and 4,270.29 is: 6,405.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.43 : 18,884.15 = 4,270.29 : x
  2. Step 2: Convert to fraction form
    12,589.43/18,884.15 = 4,270.29/x
  3. Step 3: Cross multiply
    12,589.43x = 18,884.15 × 4,270.29
  4. Step 4: Simplify right side
    12,589.43x = 80,640,753.08
  5. Step 5: Solve for x
    x = 80,640,753.08/12,589.43
  6. Step 6: Final answer
    x = 6,405.43

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Similar ratio
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1.5x scale

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.