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Finding the Fourth Proportional to 8,902.92, 13,355.91 and 3,972.45

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Solution

The fourth proportional to 8,902.92, 13,355.91 and 3,972.45 is: 5,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.92 : 13,355.91 = 3,972.45 : x
  2. Step 2: Convert to fraction form
    8,902.92/13,355.91 = 3,972.45/x
  3. Step 3: Cross multiply
    8,902.92x = 13,355.91 × 3,972.45
  4. Step 4: Simplify right side
    8,902.92x = 53,055,684.68
  5. Step 5: Solve for x
    x = 53,055,684.68/8,902.92
  6. Step 6: Final answer
    x = 5,959.36

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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.