Home / 26,757.74-40,138.32-8,987.68

Finding the Fourth Proportional to 26,757.74, 40,138.32 and 8,987.68

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Solution

The fourth proportional to 26,757.74, 40,138.32 and 8,987.68 is: 13,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,757.74 : 40,138.32 = 8,987.68 : x
  2. Step 2: Convert to fraction form
    26,757.74/40,138.32 = 8,987.68/x
  3. Step 3: Cross multiply
    26,757.74x = 40,138.32 × 8,987.68
  4. Step 4: Simplify right side
    26,757.74x = 360,750,375.90
  5. Step 5: Solve for x
    x = 360,750,375.90/26,757.74
  6. Step 6: Final answer
    x = 13,482.09

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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.