Home / 8,481.78-11,704.32-4,986.36

Finding the Fourth Proportional to 8,481.78, 11,704.32 and 4,986.36

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Solution

The fourth proportional to 8,481.78, 11,704.32 and 4,986.36 is: 6,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.78 : 11,704.32 = 4,986.36 : x
  2. Step 2: Convert to fraction form
    8,481.78/11,704.32 = 4,986.36/x
  3. Step 3: Cross multiply
    8,481.78x = 11,704.32 × 4,986.36
  4. Step 4: Simplify right side
    8,481.78x = 58,361,953.08
  5. Step 5: Solve for x
    x = 58,361,953.08/8,481.78
  6. Step 6: Final answer
    x = 6,880.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.