Home / 8,286.16-11,451.24-6,791.68

Finding the Fourth Proportional to 8,286.16, 11,451.24 and 6,791.68

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Solution

The fourth proportional to 8,286.16, 11,451.24 and 6,791.68 is: 9,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.16 : 11,451.24 = 6,791.68 : x
  2. Step 2: Convert to fraction form
    8,286.16/11,451.24 = 6,791.68/x
  3. Step 3: Cross multiply
    8,286.16x = 11,451.24 × 6,791.68
  4. Step 4: Simplify right side
    8,286.16x = 77,773,157.68
  5. Step 5: Solve for x
    x = 77,773,157.68/8,286.16
  6. Step 6: Final answer
    x = 9,385.91

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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.