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Finding the Fourth Proportional to 8,113.55, 12,170.32 and 3,496.55

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Solution

The fourth proportional to 8,113.55, 12,170.32 and 3,496.55 is: 5,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.55 : 12,170.32 = 3,496.55 : x
  2. Step 2: Convert to fraction form
    8,113.55/12,170.32 = 3,496.55/x
  3. Step 3: Cross multiply
    8,113.55x = 12,170.32 × 3,496.55
  4. Step 4: Simplify right side
    8,113.55x = 42,554,062.80
  5. Step 5: Solve for x
    x = 42,554,062.80/8,113.55
  6. Step 6: Final answer
    x = 5,244.82

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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.