Home / 9,418.11-12,997.71-5,226.36

Finding the Fourth Proportional to 9,418.11, 12,997.71 and 5,226.36

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Solution

The fourth proportional to 9,418.11, 12,997.71 and 5,226.36 is: 7,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.11 : 12,997.71 = 5,226.36 : x
  2. Step 2: Convert to fraction form
    9,418.11/12,997.71 = 5,226.36/x
  3. Step 3: Cross multiply
    9,418.11x = 12,997.71 × 5,226.36
  4. Step 4: Simplify right side
    9,418.11x = 67,930,711.64
  5. Step 5: Solve for x
    x = 67,930,711.64/9,418.11
  6. Step 6: Final answer
    x = 7,212.78

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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.