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Finding the Fourth Proportional to 8,578.08, 12,869.73 and 4,194.90

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Solution

The fourth proportional to 8,578.08, 12,869.73 and 4,194.90 is: 6,293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.08 : 12,869.73 = 4,194.90 : x
  2. Step 2: Convert to fraction form
    8,578.08/12,869.73 = 4,194.90/x
  3. Step 3: Cross multiply
    8,578.08x = 12,869.73 × 4,194.90
  4. Step 4: Simplify right side
    8,578.08x = 53,987,230.38
  5. Step 5: Solve for x
    x = 53,987,230.38/8,578.08
  6. Step 6: Final answer
    x = 6,293.63

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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.