Home / 12,031.38-18,037.31-5,016.65

Finding the Fourth Proportional to 12,031.38, 18,037.31 and 5,016.65

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Solution

The fourth proportional to 12,031.38, 18,037.31 and 5,016.65 is: 7,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.38 : 18,037.31 = 5,016.65 : x
  2. Step 2: Convert to fraction form
    12,031.38/18,037.31 = 5,016.65/x
  3. Step 3: Cross multiply
    12,031.38x = 18,037.31 × 5,016.65
  4. Step 4: Simplify right side
    12,031.38x = 90,486,755.94
  5. Step 5: Solve for x
    x = 90,486,755.94/12,031.38
  6. Step 6: Final answer
    x = 7,520.90

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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.