Home / 8,254.76-12,387.96-3,872.36

Finding the Fourth Proportional to 8,254.76, 12,387.96 and 3,872.36

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Solution

The fourth proportional to 8,254.76, 12,387.96 and 3,872.36 is: 5,811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.76 : 12,387.96 = 3,872.36 : x
  2. Step 2: Convert to fraction form
    8,254.76/12,387.96 = 3,872.36/x
  3. Step 3: Cross multiply
    8,254.76x = 12,387.96 × 3,872.36
  4. Step 4: Simplify right side
    8,254.76x = 47,970,640.79
  5. Step 5: Solve for x
    x = 47,970,640.79/8,254.76
  6. Step 6: Final answer
    x = 5,811.27

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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.