Home / 11,727.10-16,179.38-6,687.68

Finding the Fourth Proportional to 11,727.10, 16,179.38 and 6,687.68

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Solution

The fourth proportional to 11,727.10, 16,179.38 and 6,687.68 is: 9,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.10 : 16,179.38 = 6,687.68 : x
  2. Step 2: Convert to fraction form
    11,727.10/16,179.38 = 6,687.68/x
  3. Step 3: Cross multiply
    11,727.10x = 16,179.38 × 6,687.68
  4. Step 4: Simplify right side
    11,727.10x = 108,202,516.04
  5. Step 5: Solve for x
    x = 108,202,516.04/11,727.10
  6. Step 6: Final answer
    x = 9,226.71

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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.