Home / 6,747.38-10,119.92-1,815.92

Finding the Fourth Proportional to 6,747.38, 10,119.92 and 1,815.92

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Solution

The fourth proportional to 6,747.38, 10,119.92 and 1,815.92 is: 2,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.38 : 10,119.92 = 1,815.92 : x
  2. Step 2: Convert to fraction form
    6,747.38/10,119.92 = 1,815.92/x
  3. Step 3: Cross multiply
    6,747.38x = 10,119.92 × 1,815.92
  4. Step 4: Simplify right side
    6,747.38x = 18,376,965.13
  5. Step 5: Solve for x
    x = 18,376,965.13/6,747.38
  6. Step 6: Final answer
    x = 2,723.57

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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.