Home / 10,806.30-16,211.16-3,409.38

Finding the Fourth Proportional to 10,806.30, 16,211.16 and 3,409.38

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Solution

The fourth proportional to 10,806.30, 16,211.16 and 3,409.38 is: 5,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,806.30 : 16,211.16 = 3,409.38 : x
  2. Step 2: Convert to fraction form
    10,806.30/16,211.16 = 3,409.38/x
  3. Step 3: Cross multiply
    10,806.30x = 16,211.16 × 3,409.38
  4. Step 4: Simplify right side
    10,806.30x = 55,270,004.68
  5. Step 5: Solve for x
    x = 55,270,004.68/10,806.30
  6. Step 6: Final answer
    x = 5,114.61

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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.