Home / 9,418.11-12,997.01-5,169.54

Finding the Fourth Proportional to 9,418.11, 12,997.01 and 5,169.54

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Solution

The fourth proportional to 9,418.11, 12,997.01 and 5,169.54 is: 7,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.11 : 12,997.01 = 5,169.54 : x
  2. Step 2: Convert to fraction form
    9,418.11/12,997.01 = 5,169.54/x
  3. Step 3: Cross multiply
    9,418.11x = 12,997.01 × 5,169.54
  4. Step 4: Simplify right side
    9,418.11x = 67,188,537.23
  5. Step 5: Solve for x
    x = 67,188,537.23/9,418.11
  6. Step 6: Final answer
    x = 7,133.97

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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.