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Finding the Fourth Proportional to 8,394.35, 12,580.16 and 3,197.39

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Solution

The fourth proportional to 8,394.35, 12,580.16 and 3,197.39 is: 4,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.35 : 12,580.16 = 3,197.39 : x
  2. Step 2: Convert to fraction form
    8,394.35/12,580.16 = 3,197.39/x
  3. Step 3: Cross multiply
    8,394.35x = 12,580.16 × 3,197.39
  4. Step 4: Simplify right side
    8,394.35x = 40,223,677.78
  5. Step 5: Solve for x
    x = 40,223,677.78/8,394.35
  6. Step 6: Final answer
    x = 4,791.76

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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.