Home / 12,102.91-18,149.75-4,706.39

Finding the Fourth Proportional to 12,102.91, 18,149.75 and 4,706.39

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Solution

The fourth proportional to 12,102.91, 18,149.75 and 4,706.39 is: 7,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.91 : 18,149.75 = 4,706.39 : x
  2. Step 2: Convert to fraction form
    12,102.91/18,149.75 = 4,706.39/x
  3. Step 3: Cross multiply
    12,102.91x = 18,149.75 × 4,706.39
  4. Step 4: Simplify right side
    12,102.91x = 85,419,801.90
  5. Step 5: Solve for x
    x = 85,419,801.90/12,102.91
  6. Step 6: Final answer
    x = 7,057.79

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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.