Home / 12,100.62-18,137.97-4,195.56

Finding the Fourth Proportional to 12,100.62, 18,137.97 and 4,195.56

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Solution

The fourth proportional to 12,100.62, 18,137.97 and 4,195.56 is: 6,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.62 : 18,137.97 = 4,195.56 : x
  2. Step 2: Convert to fraction form
    12,100.62/18,137.97 = 4,195.56/x
  3. Step 3: Cross multiply
    12,100.62x = 18,137.97 × 4,195.56
  4. Step 4: Simplify right side
    12,100.62x = 76,098,941.41
  5. Step 5: Solve for x
    x = 76,098,941.41/12,100.62
  6. Step 6: Final answer
    x = 6,288.85

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1.5x scale

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.