Home / 8,239.96-12,361.29-2,691.70

Finding the Fourth Proportional to 8,239.96, 12,361.29 and 2,691.70

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Solution

The fourth proportional to 8,239.96, 12,361.29 and 2,691.70 is: 4,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.96 : 12,361.29 = 2,691.70 : x
  2. Step 2: Convert to fraction form
    8,239.96/12,361.29 = 2,691.70/x
  3. Step 3: Cross multiply
    8,239.96x = 12,361.29 × 2,691.70
  4. Step 4: Simplify right side
    8,239.96x = 33,272,884.29
  5. Step 5: Solve for x
    x = 33,272,884.29/8,239.96
  6. Step 6: Final answer
    x = 4,037.99

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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.