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Finding the Fourth Proportional to 8,609.33, 12,893.49 and 5,979.46

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Solution

The fourth proportional to 8,609.33, 12,893.49 and 5,979.46 is: 8,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.33 : 12,893.49 = 5,979.46 : x
  2. Step 2: Convert to fraction form
    8,609.33/12,893.49 = 5,979.46/x
  3. Step 3: Cross multiply
    8,609.33x = 12,893.49 × 5,979.46
  4. Step 4: Simplify right side
    8,609.33x = 77,096,107.72
  5. Step 5: Solve for x
    x = 77,096,107.72/8,609.33
  6. Step 6: Final answer
    x = 8,954.95

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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.