Home / 12,165.53-18,234.96-4,761.85

Finding the Fourth Proportional to 12,165.53, 18,234.96 and 4,761.85

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Solution

The fourth proportional to 12,165.53, 18,234.96 and 4,761.85 is: 7,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.53 : 18,234.96 = 4,761.85 : x
  2. Step 2: Convert to fraction form
    12,165.53/18,234.96 = 4,761.85/x
  3. Step 3: Cross multiply
    12,165.53x = 18,234.96 × 4,761.85
  4. Step 4: Simplify right side
    12,165.53x = 86,832,144.28
  5. Step 5: Solve for x
    x = 86,832,144.28/12,165.53
  6. Step 6: Final answer
    x = 7,137.56

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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.