Home / 9,418.78-12,997.92-5,227.03

Finding the Fourth Proportional to 9,418.78, 12,997.92 and 5,227.03

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Solution

The fourth proportional to 9,418.78, 12,997.92 and 5,227.03 is: 7,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.78 : 12,997.92 = 5,227.03 : x
  2. Step 2: Convert to fraction form
    9,418.78/12,997.92 = 5,227.03/x
  3. Step 3: Cross multiply
    9,418.78x = 12,997.92 × 5,227.03
  4. Step 4: Simplify right side
    9,418.78x = 67,940,524.22
  5. Step 5: Solve for x
    x = 67,940,524.22/9,418.78
  6. Step 6: Final answer
    x = 7,213.30

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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.