Home / 12,424.33-18,630.11-3,658.11

Finding the Fourth Proportional to 12,424.33, 18,630.11 and 3,658.11

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Solution

The fourth proportional to 12,424.33, 18,630.11 and 3,658.11 is: 5,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.33 : 18,630.11 = 3,658.11 : x
  2. Step 2: Convert to fraction form
    12,424.33/18,630.11 = 3,658.11/x
  3. Step 3: Cross multiply
    12,424.33x = 18,630.11 × 3,658.11
  4. Step 4: Simplify right side
    12,424.33x = 68,150,930.97
  5. Step 5: Solve for x
    x = 68,150,930.97/12,424.33
  6. Step 6: Final answer
    x = 5,485.28

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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.