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Finding the Fourth Proportional to 8,383.87, 12,576.71 and 3,118.26

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Solution

The fourth proportional to 8,383.87, 12,576.71 and 3,118.26 is: 4,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.87 : 12,576.71 = 3,118.26 : x
  2. Step 2: Convert to fraction form
    8,383.87/12,576.71 = 3,118.26/x
  3. Step 3: Cross multiply
    8,383.87x = 12,576.71 × 3,118.26
  4. Step 4: Simplify right side
    8,383.87x = 39,217,436.13
  5. Step 5: Solve for x
    x = 39,217,436.13/8,383.87
  6. Step 6: Final answer
    x = 4,677.73

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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.