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Finding the Fourth Proportional to 8,100.64, 12,151.28 and 2,257.76

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Solution

The fourth proportional to 8,100.64, 12,151.28 and 2,257.76 is: 3,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.64 : 12,151.28 = 2,257.76 : x
  2. Step 2: Convert to fraction form
    8,100.64/12,151.28 = 2,257.76/x
  3. Step 3: Cross multiply
    8,100.64x = 12,151.28 × 2,257.76
  4. Step 4: Simplify right side
    8,100.64x = 27,434,673.93
  5. Step 5: Solve for x
    x = 27,434,673.93/8,100.64
  6. Step 6: Final answer
    x = 3,386.73

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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.