Home / 11,939.45-17,912.21-7,013.25

Finding the Fourth Proportional to 11,939.45, 17,912.21 and 7,013.25

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Solution

The fourth proportional to 11,939.45, 17,912.21 and 7,013.25 is: 10,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.45 : 17,912.21 = 7,013.25 : x
  2. Step 2: Convert to fraction form
    11,939.45/17,912.21 = 7,013.25/x
  3. Step 3: Cross multiply
    11,939.45x = 17,912.21 × 7,013.25
  4. Step 4: Simplify right side
    11,939.45x = 125,622,771.72
  5. Step 5: Solve for x
    x = 125,622,771.72/11,939.45
  6. Step 6: Final answer
    x = 10,521.66

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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.