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Finding the Fourth Proportional to 8,343.46, 12,515.46 and 3,958.66

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Solution

The fourth proportional to 8,343.46, 12,515.46 and 3,958.66 is: 5,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.46 : 12,515.46 = 3,958.66 : x
  2. Step 2: Convert to fraction form
    8,343.46/12,515.46 = 3,958.66/x
  3. Step 3: Cross multiply
    8,343.46x = 12,515.46 × 3,958.66
  4. Step 4: Simplify right side
    8,343.46x = 49,544,450.88
  5. Step 5: Solve for x
    x = 49,544,450.88/8,343.46
  6. Step 6: Final answer
    x = 5,938.12

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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.