Home / 8,215.44-12,286.56-7,296.96

Finding the Fourth Proportional to 8,215.44, 12,286.56 and 7,296.96

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Solution

The fourth proportional to 8,215.44, 12,286.56 and 7,296.96 is: 10,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.44 : 12,286.56 = 7,296.96 : x
  2. Step 2: Convert to fraction form
    8,215.44/12,286.56 = 7,296.96/x
  3. Step 3: Cross multiply
    8,215.44x = 12,286.56 × 7,296.96
  4. Step 4: Simplify right side
    8,215.44x = 89,654,536.86
  5. Step 5: Solve for x
    x = 89,654,536.86/8,215.44
  6. Step 6: Final answer
    x = 10,912.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.