Home / 11,245.97-15,520.79-8,262.83

Finding the Fourth Proportional to 11,245.97, 15,520.79 and 8,262.83

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Solution

The fourth proportional to 11,245.97, 15,520.79 and 8,262.83 is: 11,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.97 : 15,520.79 = 8,262.83 : x
  2. Step 2: Convert to fraction form
    11,245.97/15,520.79 = 8,262.83/x
  3. Step 3: Cross multiply
    11,245.97x = 15,520.79 × 8,262.83
  4. Step 4: Simplify right side
    11,245.97x = 128,245,708.69
  5. Step 5: Solve for x
    x = 128,245,708.69/11,245.97
  6. Step 6: Final answer
    x = 11,403.70

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Half scale
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Double scale
Find fourth proportional to 11,246.97, 15,522.17 and 8,263.83
Similar ratio
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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.