Home / 11,249.12-16,879.40-6,817.38

Finding the Fourth Proportional to 11,249.12, 16,879.40 and 6,817.38

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Solution

The fourth proportional to 11,249.12, 16,879.40 and 6,817.38 is: 10,229.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.12 : 16,879.40 = 6,817.38 : x
  2. Step 2: Convert to fraction form
    11,249.12/16,879.40 = 6,817.38/x
  3. Step 3: Cross multiply
    11,249.12x = 16,879.40 × 6,817.38
  4. Step 4: Simplify right side
    11,249.12x = 115,073,212.15
  5. Step 5: Solve for x
    x = 115,073,212.15/11,249.12
  6. Step 6: Final answer
    x = 10,229.53

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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.