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Finding the Fourth Proportional to 8,757.87, 13,138.52 and 2,836.23

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Solution

The fourth proportional to 8,757.87, 13,138.52 and 2,836.23 is: 4,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.87 : 13,138.52 = 2,836.23 : x
  2. Step 2: Convert to fraction form
    8,757.87/13,138.52 = 2,836.23/x
  3. Step 3: Cross multiply
    8,757.87x = 13,138.52 × 2,836.23
  4. Step 4: Simplify right side
    8,757.87x = 37,263,850.40
  5. Step 5: Solve for x
    x = 37,263,850.40/8,757.87
  6. Step 6: Final answer
    x = 4,254.90

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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.