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Finding the Fourth Proportional to 8,857.71, 13,282.56 and 2,615.56

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Solution

The fourth proportional to 8,857.71, 13,282.56 and 2,615.56 is: 3,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.71 : 13,282.56 = 2,615.56 : x
  2. Step 2: Convert to fraction form
    8,857.71/13,282.56 = 2,615.56/x
  3. Step 3: Cross multiply
    8,857.71x = 13,282.56 × 2,615.56
  4. Step 4: Simplify right side
    8,857.71x = 34,741,299.43
  5. Step 5: Solve for x
    x = 34,741,299.43/8,857.71
  6. Step 6: Final answer
    x = 3,922.15

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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.