Home / 8,418.31-12,625.03-2,871.53

Finding the Fourth Proportional to 8,418.31, 12,625.03 and 2,871.53

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Solution

The fourth proportional to 8,418.31, 12,625.03 and 2,871.53 is: 4,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.31 : 12,625.03 = 2,871.53 : x
  2. Step 2: Convert to fraction form
    8,418.31/12,625.03 = 2,871.53/x
  3. Step 3: Cross multiply
    8,418.31x = 12,625.03 × 2,871.53
  4. Step 4: Simplify right side
    8,418.31x = 36,253,113.65
  5. Step 5: Solve for x
    x = 36,253,113.65/8,418.31
  6. Step 6: Final answer
    x = 4,306.46

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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.