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Finding the Fourth Proportional to 8,891.12, 13,338.12 and 2,735.12

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Solution

The fourth proportional to 8,891.12, 13,338.12 and 2,735.12 is: 4,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.12 : 13,338.12 = 2,735.12 : x
  2. Step 2: Convert to fraction form
    8,891.12/13,338.12 = 2,735.12/x
  3. Step 3: Cross multiply
    8,891.12x = 13,338.12 × 2,735.12
  4. Step 4: Simplify right side
    8,891.12x = 36,481,358.77
  5. Step 5: Solve for x
    x = 36,481,358.77/8,891.12
  6. Step 6: Final answer
    x = 4,103.12

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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.