Home / 11,489.44-15,854.22-6,454.20

Finding the Fourth Proportional to 11,489.44, 15,854.22 and 6,454.20

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Solution

The fourth proportional to 11,489.44, 15,854.22 and 6,454.20 is: 8,906.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.44 : 15,854.22 = 6,454.20 : x
  2. Step 2: Convert to fraction form
    11,489.44/15,854.22 = 6,454.20/x
  3. Step 3: Cross multiply
    11,489.44x = 15,854.22 × 6,454.20
  4. Step 4: Simplify right side
    11,489.44x = 102,326,306.72
  5. Step 5: Solve for x
    x = 102,326,306.72/11,489.44
  6. Step 6: Final answer
    x = 8,906.12

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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.