Home / 9,408.16-14,115.28-3,171.20

Finding the Fourth Proportional to 9,408.16, 14,115.28 and 3,171.20

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Solution

The fourth proportional to 9,408.16, 14,115.28 and 3,171.20 is: 4,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.16 : 14,115.28 = 3,171.20 : x
  2. Step 2: Convert to fraction form
    9,408.16/14,115.28 = 3,171.20/x
  3. Step 3: Cross multiply
    9,408.16x = 14,115.28 × 3,171.20
  4. Step 4: Simplify right side
    9,408.16x = 44,762,375.94
  5. Step 5: Solve for x
    x = 44,762,375.94/9,408.16
  6. Step 6: Final answer
    x = 4,757.82

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1.5x scale

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.