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Finding the Fourth Proportional to 6,609.27, 9,920.39 and 6,578.49

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Solution

The fourth proportional to 6,609.27, 9,920.39 and 6,578.49 is: 9,874.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.27 : 9,920.39 = 6,578.49 : x
  2. Step 2: Convert to fraction form
    6,609.27/9,920.39 = 6,578.49/x
  3. Step 3: Cross multiply
    6,609.27x = 9,920.39 × 6,578.49
  4. Step 4: Simplify right side
    6,609.27x = 65,261,153.52
  5. Step 5: Solve for x
    x = 65,261,153.52/6,609.27
  6. Step 6: Final answer
    x = 9,874.18

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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.