Home / 12,630.55-18,942.30-3,747.82

Finding the Fourth Proportional to 12,630.55, 18,942.30 and 3,747.82

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Solution

The fourth proportional to 12,630.55, 18,942.30 and 3,747.82 is: 5,620.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.55 : 18,942.30 = 3,747.82 : x
  2. Step 2: Convert to fraction form
    12,630.55/18,942.30 = 3,747.82/x
  3. Step 3: Cross multiply
    12,630.55x = 18,942.30 × 3,747.82
  4. Step 4: Simplify right side
    12,630.55x = 70,992,330.79
  5. Step 5: Solve for x
    x = 70,992,330.79/12,630.55
  6. Step 6: Final answer
    x = 5,620.68

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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.