Home / 11,331.78-16,997.07-3,540.06

Finding the Fourth Proportional to 11,331.78, 16,997.07 and 3,540.06

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Solution

The fourth proportional to 11,331.78, 16,997.07 and 3,540.06 is: 5,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.78 : 16,997.07 = 3,540.06 : x
  2. Step 2: Convert to fraction form
    11,331.78/16,997.07 = 3,540.06/x
  3. Step 3: Cross multiply
    11,331.78x = 16,997.07 × 3,540.06
  4. Step 4: Simplify right side
    11,331.78x = 60,170,647.62
  5. Step 5: Solve for x
    x = 60,170,647.62/11,331.78
  6. Step 6: Final answer
    x = 5,309.90

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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.