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Finding the Fourth Proportional to 8,855.28, 13,276.80 and 3,922.24

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Solution

The fourth proportional to 8,855.28, 13,276.80 and 3,922.24 is: 5,880.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.28 : 13,276.80 = 3,922.24 : x
  2. Step 2: Convert to fraction form
    8,855.28/13,276.80 = 3,922.24/x
  3. Step 3: Cross multiply
    8,855.28x = 13,276.80 × 3,922.24
  4. Step 4: Simplify right side
    8,855.28x = 52,074,796.03
  5. Step 5: Solve for x
    x = 52,074,796.03/8,855.28
  6. Step 6: Final answer
    x = 5,880.65

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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.