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Finding the Fourth Proportional to 8,418.92, 12,627.02 and 3,976.58

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Solution

The fourth proportional to 8,418.92, 12,627.02 and 3,976.58 is: 5,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.92 : 12,627.02 = 3,976.58 : x
  2. Step 2: Convert to fraction form
    8,418.92/12,627.02 = 3,976.58/x
  3. Step 3: Cross multiply
    8,418.92x = 12,627.02 × 3,976.58
  4. Step 4: Simplify right side
    8,418.92x = 50,212,292.06
  5. Step 5: Solve for x
    x = 50,212,292.06/8,418.92
  6. Step 6: Final answer
    x = 5,964.22

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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.