Home / 14,125.12-21,191.28-8,286.88

Finding the Fourth Proportional to 14,125.12, 21,191.28 and 8,286.88

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Solution

The fourth proportional to 14,125.12, 21,191.28 and 8,286.88 is: 12,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.12 : 21,191.28 = 8,286.88 : x
  2. Step 2: Convert to fraction form
    14,125.12/21,191.28 = 8,286.88/x
  3. Step 3: Cross multiply
    14,125.12x = 21,191.28 × 8,286.88
  4. Step 4: Simplify right side
    14,125.12x = 175,609,594.41
  5. Step 5: Solve for x
    x = 175,609,594.41/14,125.12
  6. Step 6: Final answer
    x = 12,432.43

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Double scale
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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.