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Finding the Fourth Proportional to 8,393.13, 12,578.36 and 3,196.17

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Solution

The fourth proportional to 8,393.13, 12,578.36 and 3,196.17 is: 4,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.13 : 12,578.36 = 3,196.17 : x
  2. Step 2: Convert to fraction form
    8,393.13/12,578.36 = 3,196.17/x
  3. Step 3: Cross multiply
    8,393.13x = 12,578.36 × 3,196.17
  4. Step 4: Simplify right side
    8,393.13x = 40,202,576.88
  5. Step 5: Solve for x
    x = 40,202,576.88/8,393.13
  6. Step 6: Final answer
    x = 4,789.94

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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.