Home / 8,257.43-12,386.56-3,326.41

Finding the Fourth Proportional to 8,257.43, 12,386.56 and 3,326.41

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Solution

The fourth proportional to 8,257.43, 12,386.56 and 3,326.41 is: 4,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.43 : 12,386.56 = 3,326.41 : x
  2. Step 2: Convert to fraction form
    8,257.43/12,386.56 = 3,326.41/x
  3. Step 3: Cross multiply
    8,257.43x = 12,386.56 × 3,326.41
  4. Step 4: Simplify right side
    8,257.43x = 41,202,737.77
  5. Step 5: Solve for x
    x = 41,202,737.77/8,257.43
  6. Step 6: Final answer
    x = 4,989.78

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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.