Home / 11,912.60-17,868.34-5,668.04

Finding the Fourth Proportional to 11,912.60, 17,868.34 and 5,668.04

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Solution

The fourth proportional to 11,912.60, 17,868.34 and 5,668.04 is: 8,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.60 : 17,868.34 = 5,668.04 : x
  2. Step 2: Convert to fraction form
    11,912.60/17,868.34 = 5,668.04/x
  3. Step 3: Cross multiply
    11,912.60x = 17,868.34 × 5,668.04
  4. Step 4: Simplify right side
    11,912.60x = 101,278,465.85
  5. Step 5: Solve for x
    x = 101,278,465.85/11,912.60
  6. Step 6: Final answer
    x = 8,501.79

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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.