Home / 7,912.75-11,869.23-2,069.36

Finding the Fourth Proportional to 7,912.75, 11,869.23 and 2,069.36

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Solution

The fourth proportional to 7,912.75, 11,869.23 and 2,069.36 is: 3,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.75 : 11,869.23 = 2,069.36 : x
  2. Step 2: Convert to fraction form
    7,912.75/11,869.23 = 2,069.36/x
  3. Step 3: Cross multiply
    7,912.75x = 11,869.23 × 2,069.36
  4. Step 4: Simplify right side
    7,912.75x = 24,561,658.21
  5. Step 5: Solve for x
    x = 24,561,658.21/7,912.75
  6. Step 6: Final answer
    x = 3,104.06

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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.