Home / 8,759.26-13,138.92-2,185.44

Finding the Fourth Proportional to 8,759.26, 13,138.92 and 2,185.44

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Solution

The fourth proportional to 8,759.26, 13,138.92 and 2,185.44 is: 3,278.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.26 : 13,138.92 = 2,185.44 : x
  2. Step 2: Convert to fraction form
    8,759.26/13,138.92 = 2,185.44/x
  3. Step 3: Cross multiply
    8,759.26x = 13,138.92 × 2,185.44
  4. Step 4: Simplify right side
    8,759.26x = 28,714,321.32
  5. Step 5: Solve for x
    x = 28,714,321.32/8,759.26
  6. Step 6: Final answer
    x = 3,278.17

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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.