Home / 11,408.85-17,109.99-4,388.31

Finding the Fourth Proportional to 11,408.85, 17,109.99 and 4,388.31

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Solution

The fourth proportional to 11,408.85, 17,109.99 and 4,388.31 is: 6,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.85 : 17,109.99 = 4,388.31 : x
  2. Step 2: Convert to fraction form
    11,408.85/17,109.99 = 4,388.31/x
  3. Step 3: Cross multiply
    11,408.85x = 17,109.99 × 4,388.31
  4. Step 4: Simplify right side
    11,408.85x = 75,083,940.22
  5. Step 5: Solve for x
    x = 75,083,940.22/11,408.85
  6. Step 6: Final answer
    x = 6,581.20

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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.