Home / 7,869.24-11,806.59-3,489.77

Finding the Fourth Proportional to 7,869.24, 11,806.59 and 3,489.77

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Solution

The fourth proportional to 7,869.24, 11,806.59 and 3,489.77 is: 5,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.24 : 11,806.59 = 3,489.77 : x
  2. Step 2: Convert to fraction form
    7,869.24/11,806.59 = 3,489.77/x
  3. Step 3: Cross multiply
    7,869.24x = 11,806.59 × 3,489.77
  4. Step 4: Simplify right side
    7,869.24x = 41,202,224.55
  5. Step 5: Solve for x
    x = 41,202,224.55/7,869.24
  6. Step 6: Final answer
    x = 5,235.86

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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.