Home / 10,408.88-15,619.48-3,839.64

Finding the Fourth Proportional to 10,408.88, 15,619.48 and 3,839.64

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Solution

The fourth proportional to 10,408.88, 15,619.48 and 3,839.64 is: 5,761.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.88 : 15,619.48 = 3,839.64 : x
  2. Step 2: Convert to fraction form
    10,408.88/15,619.48 = 3,839.64/x
  3. Step 3: Cross multiply
    10,408.88x = 15,619.48 × 3,839.64
  4. Step 4: Simplify right side
    10,408.88x = 59,973,180.19
  5. Step 5: Solve for x
    x = 59,973,180.19/10,408.88
  6. Step 6: Final answer
    x = 5,761.73

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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.