Home / 26,778.78-40,171.80-9,249.96

Finding the Fourth Proportional to 26,778.78, 40,171.80 and 9,249.96

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Solution

The fourth proportional to 26,778.78, 40,171.80 and 9,249.96 is: 13,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,778.78 : 40,171.80 = 9,249.96 : x
  2. Step 2: Convert to fraction form
    26,778.78/40,171.80 = 9,249.96/x
  3. Step 3: Cross multiply
    26,778.78x = 40,171.80 × 9,249.96
  4. Step 4: Simplify right side
    26,778.78x = 371,587,543.13
  5. Step 5: Solve for x
    x = 371,587,543.13/26,778.78
  6. Step 6: Final answer
    x = 13,876.19

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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.