Home / 11,408.31-17,107.88-4,388.58

Finding the Fourth Proportional to 11,408.31, 17,107.88 and 4,388.58

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Solution

The fourth proportional to 11,408.31, 17,107.88 and 4,388.58 is: 6,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.31 : 17,107.88 = 4,388.58 : x
  2. Step 2: Convert to fraction form
    11,408.31/17,107.88 = 4,388.58/x
  3. Step 3: Cross multiply
    11,408.31x = 17,107.88 × 4,388.58
  4. Step 4: Simplify right side
    11,408.31x = 75,079,278.07
  5. Step 5: Solve for x
    x = 75,079,278.07/11,408.31
  6. Step 6: Final answer
    x = 6,581.10

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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.