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Finding the Fourth Proportional to 8,326.46, 12,489.68 and 3,396.48

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Solution

The fourth proportional to 8,326.46, 12,489.68 and 3,396.48 is: 5,094.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.46 : 12,489.68 = 3,396.48 : x
  2. Step 2: Convert to fraction form
    8,326.46/12,489.68 = 3,396.48/x
  3. Step 3: Cross multiply
    8,326.46x = 12,489.68 × 3,396.48
  4. Step 4: Simplify right side
    8,326.46x = 42,420,948.33
  5. Step 5: Solve for x
    x = 42,420,948.33/8,326.46
  6. Step 6: Final answer
    x = 5,094.72

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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.