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Finding the Fourth Proportional to 8,801.44, 12,144.72 and 5,489.44

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Solution

The fourth proportional to 8,801.44, 12,144.72 and 5,489.44 is: 7,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.44 : 12,144.72 = 5,489.44 : x
  2. Step 2: Convert to fraction form
    8,801.44/12,144.72 = 5,489.44/x
  3. Step 3: Cross multiply
    8,801.44x = 12,144.72 × 5,489.44
  4. Step 4: Simplify right side
    8,801.44x = 66,667,711.76
  5. Step 5: Solve for x
    x = 66,667,711.76/8,801.44
  6. Step 6: Final answer
    x = 7,574.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.