Home / 8,236.60-11,443.33-8,138.32

Finding the Fourth Proportional to 8,236.60, 11,443.33 and 8,138.32

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Solution

The fourth proportional to 8,236.60, 11,443.33 and 8,138.32 is: 11,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.60 : 11,443.33 = 8,138.32 : x
  2. Step 2: Convert to fraction form
    8,236.60/11,443.33 = 8,138.32/x
  3. Step 3: Cross multiply
    8,236.60x = 11,443.33 × 8,138.32
  4. Step 4: Simplify right side
    8,236.60x = 93,129,481.41
  5. Step 5: Solve for x
    x = 93,129,481.41/8,236.60
  6. Step 6: Final answer
    x = 11,306.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.