Home / 11,727.38-16,183.60-6,422.09

Finding the Fourth Proportional to 11,727.38, 16,183.60 and 6,422.09

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Solution

The fourth proportional to 11,727.38, 16,183.60 and 6,422.09 is: 8,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.38 : 16,183.60 = 6,422.09 : x
  2. Step 2: Convert to fraction form
    11,727.38/16,183.60 = 6,422.09/x
  3. Step 3: Cross multiply
    11,727.38x = 16,183.60 × 6,422.09
  4. Step 4: Simplify right side
    11,727.38x = 103,932,438.75
  5. Step 5: Solve for x
    x = 103,932,438.75/11,727.38
  6. Step 6: Final answer
    x = 8,862.37

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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.