Home / 11,505-17,247.21-4,108.38

Finding the Fourth Proportional to 11,505, 17,247.21 and 4,108.38

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Solution

The fourth proportional to 11,505, 17,247.21 and 4,108.38 is: 6,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505 : 17,247.21 = 4,108.38 : x
  2. Step 2: Convert to fraction form
    11,505/17,247.21 = 4,108.38/x
  3. Step 3: Cross multiply
    11,505x = 17,247.21 × 4,108.38
  4. Step 4: Simplify right side
    11,505x = 70,858,092.62
  5. Step 5: Solve for x
    x = 70,858,092.62/11,505
  6. Step 6: Final answer
    x = 6,158.90

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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.