Home / 6,986.88-10,481.76-5,161.92

Finding the Fourth Proportional to 6,986.88, 10,481.76 and 5,161.92

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Solution

The fourth proportional to 6,986.88, 10,481.76 and 5,161.92 is: 7,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.88 : 10,481.76 = 5,161.92 : x
  2. Step 2: Convert to fraction form
    6,986.88/10,481.76 = 5,161.92/x
  3. Step 3: Cross multiply
    6,986.88x = 10,481.76 × 5,161.92
  4. Step 4: Simplify right side
    6,986.88x = 54,106,006.58
  5. Step 5: Solve for x
    x = 54,106,006.58/6,986.88
  6. Step 6: Final answer
    x = 7,743.94

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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.