Home / 10,806.24-16,211.79-7,818.56

Finding the Fourth Proportional to 10,806.24, 16,211.79 and 7,818.56

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Solution

The fourth proportional to 10,806.24, 16,211.79 and 7,818.56 is: 11,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,806.24 : 16,211.79 = 7,818.56 : x
  2. Step 2: Convert to fraction form
    10,806.24/16,211.79 = 7,818.56/x
  3. Step 3: Cross multiply
    10,806.24x = 16,211.79 × 7,818.56
  4. Step 4: Simplify right side
    10,806.24x = 126,752,771.76
  5. Step 5: Solve for x
    x = 126,752,771.76/10,806.24
  6. Step 6: Final answer
    x = 11,729.59

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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.