Home / 8,255.72-11,383.14-6,758.12

Finding the Fourth Proportional to 8,255.72, 11,383.14 and 6,758.12

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Solution

The fourth proportional to 8,255.72, 11,383.14 and 6,758.12 is: 9,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.72 : 11,383.14 = 6,758.12 : x
  2. Step 2: Convert to fraction form
    8,255.72/11,383.14 = 6,758.12/x
  3. Step 3: Cross multiply
    8,255.72x = 11,383.14 × 6,758.12
  4. Step 4: Simplify right side
    8,255.72x = 76,928,626.10
  5. Step 5: Solve for x
    x = 76,928,626.10/8,255.72
  6. Step 6: Final answer
    x = 9,318.22

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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.