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Finding the Fourth Proportional to 8,906.97, 12,295.56 and 5,323.20

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Solution

The fourth proportional to 8,906.97, 12,295.56 and 5,323.20 is: 7,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.97 : 12,295.56 = 5,323.20 : x
  2. Step 2: Convert to fraction form
    8,906.97/12,295.56 = 5,323.20/x
  3. Step 3: Cross multiply
    8,906.97x = 12,295.56 × 5,323.20
  4. Step 4: Simplify right side
    8,906.97x = 65,451,724.99
  5. Step 5: Solve for x
    x = 65,451,724.99/8,906.97
  6. Step 6: Final answer
    x = 7,348.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.