Home / 16,144.38-22,278.20-9,431.90

Finding the Fourth Proportional to 16,144.38, 22,278.20 and 9,431.90

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Solution

The fourth proportional to 16,144.38, 22,278.20 and 9,431.90 is: 13,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,144.38 : 22,278.20 = 9,431.90 : x
  2. Step 2: Convert to fraction form
    16,144.38/22,278.20 = 9,431.90/x
  3. Step 3: Cross multiply
    16,144.38x = 22,278.20 × 9,431.90
  4. Step 4: Simplify right side
    16,144.38x = 210,125,754.58
  5. Step 5: Solve for x
    x = 210,125,754.58/16,144.38
  6. Step 6: Final answer
    x = 13,015.41

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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.