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Finding the Fourth Proportional to 8,168.96, 12,258.18 and 3,239.12

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Solution

The fourth proportional to 8,168.96, 12,258.18 and 3,239.12 is: 4,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.96 : 12,258.18 = 3,239.12 : x
  2. Step 2: Convert to fraction form
    8,168.96/12,258.18 = 3,239.12/x
  3. Step 3: Cross multiply
    8,168.96x = 12,258.18 × 3,239.12
  4. Step 4: Simplify right side
    8,168.96x = 39,705,716.00
  5. Step 5: Solve for x
    x = 39,705,716.00/8,168.96
  6. Step 6: Final answer
    x = 4,860.56

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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.