Home / 8,238.53-12,359.76-2,691.87

Finding the Fourth Proportional to 8,238.53, 12,359.76 and 2,691.87

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Solution

The fourth proportional to 8,238.53, 12,359.76 and 2,691.87 is: 4,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.53 : 12,359.76 = 2,691.87 : x
  2. Step 2: Convert to fraction form
    8,238.53/12,359.76 = 2,691.87/x
  3. Step 3: Cross multiply
    8,238.53x = 12,359.76 × 2,691.87
  4. Step 4: Simplify right side
    8,238.53x = 33,270,810.71
  5. Step 5: Solve for x
    x = 33,270,810.71/8,238.53
  6. Step 6: Final answer
    x = 4,038.44

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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.