Home / 7,617.38-11,426.13-2,687.85

Finding the Fourth Proportional to 7,617.38, 11,426.13 and 2,687.85

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Solution

The fourth proportional to 7,617.38, 11,426.13 and 2,687.85 is: 4,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.38 : 11,426.13 = 2,687.85 : x
  2. Step 2: Convert to fraction form
    7,617.38/11,426.13 = 2,687.85/x
  3. Step 3: Cross multiply
    7,617.38x = 11,426.13 × 2,687.85
  4. Step 4: Simplify right side
    7,617.38x = 30,711,723.52
  5. Step 5: Solve for x
    x = 30,711,723.52/7,617.38
  6. Step 6: Final answer
    x = 4,031.80

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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.