Home / 12,227.15-18,335.11-3,905.31

Finding the Fourth Proportional to 12,227.15, 18,335.11 and 3,905.31

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Solution

The fourth proportional to 12,227.15, 18,335.11 and 3,905.31 is: 5,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.15 : 18,335.11 = 3,905.31 : x
  2. Step 2: Convert to fraction form
    12,227.15/18,335.11 = 3,905.31/x
  3. Step 3: Cross multiply
    12,227.15x = 18,335.11 × 3,905.31
  4. Step 4: Simplify right side
    12,227.15x = 71,604,354.75
  5. Step 5: Solve for x
    x = 71,604,354.75/12,227.15
  6. Step 6: Final answer
    x = 5,856.18

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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.