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Finding the Fourth Proportional to 8,229.40, 12,344.10 and 6,844.30

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Solution

The fourth proportional to 8,229.40, 12,344.10 and 6,844.30 is: 10,266.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.40 : 12,344.10 = 6,844.30 : x
  2. Step 2: Convert to fraction form
    8,229.40/12,344.10 = 6,844.30/x
  3. Step 3: Cross multiply
    8,229.40x = 12,344.10 × 6,844.30
  4. Step 4: Simplify right side
    8,229.40x = 84,486,723.63
  5. Step 5: Solve for x
    x = 84,486,723.63/8,229.40
  6. Step 6: Final answer
    x = 10,266.45

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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.