Home / 12,072.87-18,110.97-3,753.48

Finding the Fourth Proportional to 12,072.87, 18,110.97 and 3,753.48

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Solution

The fourth proportional to 12,072.87, 18,110.97 and 3,753.48 is: 5,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.87 : 18,110.97 = 3,753.48 : x
  2. Step 2: Convert to fraction form
    12,072.87/18,110.97 = 3,753.48/x
  3. Step 3: Cross multiply
    12,072.87x = 18,110.97 × 3,753.48
  4. Step 4: Simplify right side
    12,072.87x = 67,979,163.68
  5. Step 5: Solve for x
    x = 67,979,163.68/12,072.87
  6. Step 6: Final answer
    x = 5,630.74

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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.