Home / 13,408.38-20,115-6,011.46

Finding the Fourth Proportional to 13,408.38, 20,115 and 6,011.46

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Solution

The fourth proportional to 13,408.38, 20,115 and 6,011.46 is: 9,018.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.38 : 20,115 = 6,011.46 : x
  2. Step 2: Convert to fraction form
    13,408.38/20,115 = 6,011.46/x
  3. Step 3: Cross multiply
    13,408.38x = 20,115 × 6,011.46
  4. Step 4: Simplify right side
    13,408.38x = 120,920,517.90
  5. Step 5: Solve for x
    x = 120,920,517.90/13,408.38
  6. Step 6: Final answer
    x = 9,018.28

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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.