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Finding the Fourth Proportional to 8,584.92, 12,880.14 and 3,906.60

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Solution

The fourth proportional to 8,584.92, 12,880.14 and 3,906.60 is: 5,861.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.92 : 12,880.14 = 3,906.60 : x
  2. Step 2: Convert to fraction form
    8,584.92/12,880.14 = 3,906.60/x
  3. Step 3: Cross multiply
    8,584.92x = 12,880.14 × 3,906.60
  4. Step 4: Simplify right side
    8,584.92x = 50,317,554.92
  5. Step 5: Solve for x
    x = 50,317,554.92/8,584.92
  6. Step 6: Final answer
    x = 5,861.16

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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.