Home / 12,084.20-18,126.30-8,397.80

Finding the Fourth Proportional to 12,084.20, 18,126.30 and 8,397.80

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Solution

The fourth proportional to 12,084.20, 18,126.30 and 8,397.80 is: 12,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.20 : 18,126.30 = 8,397.80 : x
  2. Step 2: Convert to fraction form
    12,084.20/18,126.30 = 8,397.80/x
  3. Step 3: Cross multiply
    12,084.20x = 18,126.30 × 8,397.80
  4. Step 4: Simplify right side
    12,084.20x = 152,221,042.14
  5. Step 5: Solve for x
    x = 152,221,042.14/12,084.20
  6. Step 6: Final answer
    x = 12,596.70

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Double scale
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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.