Home / 15,249.38-21,037.46-8,958.92

Finding the Fourth Proportional to 15,249.38, 21,037.46 and 8,958.92

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Solution

The fourth proportional to 15,249.38, 21,037.46 and 8,958.92 is: 12,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.38 : 21,037.46 = 8,958.92 : x
  2. Step 2: Convert to fraction form
    15,249.38/21,037.46 = 8,958.92/x
  3. Step 3: Cross multiply
    15,249.38x = 21,037.46 × 8,958.92
  4. Step 4: Simplify right side
    15,249.38x = 188,472,921.14
  5. Step 5: Solve for x
    x = 188,472,921.14/15,249.38
  6. Step 6: Final answer
    x = 12,359.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.