Home / 11,486.72-17,231.03-4,912.96

Finding the Fourth Proportional to 11,486.72, 17,231.03 and 4,912.96

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Solution

The fourth proportional to 11,486.72, 17,231.03 and 4,912.96 is: 7,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.72 : 17,231.03 = 4,912.96 : x
  2. Step 2: Convert to fraction form
    11,486.72/17,231.03 = 4,912.96/x
  3. Step 3: Cross multiply
    11,486.72x = 17,231.03 × 4,912.96
  4. Step 4: Simplify right side
    11,486.72x = 84,655,361.15
  5. Step 5: Solve for x
    x = 84,655,361.15/11,486.72
  6. Step 6: Final answer
    x = 7,369.85

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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.