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Finding the Fourth Proportional to 8,777.88, 13,170.69 and 3,229.92

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Solution

The fourth proportional to 8,777.88, 13,170.69 and 3,229.92 is: 4,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.88 : 13,170.69 = 3,229.92 : x
  2. Step 2: Convert to fraction form
    8,777.88/13,170.69 = 3,229.92/x
  3. Step 3: Cross multiply
    8,777.88x = 13,170.69 × 3,229.92
  4. Step 4: Simplify right side
    8,777.88x = 42,540,275.04
  5. Step 5: Solve for x
    x = 42,540,275.04/8,777.88
  6. Step 6: Final answer
    x = 4,846.30

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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.