Home / 12,494.31-18,747.54-5,912.66

Finding the Fourth Proportional to 12,494.31, 18,747.54 and 5,912.66

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Solution

The fourth proportional to 12,494.31, 18,747.54 and 5,912.66 is: 8,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.31 : 18,747.54 = 5,912.66 : x
  2. Step 2: Convert to fraction form
    12,494.31/18,747.54 = 5,912.66/x
  3. Step 3: Cross multiply
    12,494.31x = 18,747.54 × 5,912.66
  4. Step 4: Simplify right side
    12,494.31x = 110,847,829.86
  5. Step 5: Solve for x
    x = 110,847,829.86/12,494.31
  6. Step 6: Final answer
    x = 8,871.86

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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.