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Finding the Fourth Proportional to 8,777.76, 13,164.81 and 3,229.66

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Solution

The fourth proportional to 8,777.76, 13,164.81 and 3,229.66 is: 4,843.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.76 : 13,164.81 = 3,229.66 : x
  2. Step 2: Convert to fraction form
    8,777.76/13,164.81 = 3,229.66/x
  3. Step 3: Cross multiply
    8,777.76x = 13,164.81 × 3,229.66
  4. Step 4: Simplify right side
    8,777.76x = 42,517,860.26
  5. Step 5: Solve for x
    x = 42,517,860.26/8,777.76
  6. Step 6: Final answer
    x = 4,843.82

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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.