Home / 8,747.90-13,121.92-3,201.44

Finding the Fourth Proportional to 8,747.90, 13,121.92 and 3,201.44

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Solution

The fourth proportional to 8,747.90, 13,121.92 and 3,201.44 is: 4,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.90 : 13,121.92 = 3,201.44 : x
  2. Step 2: Convert to fraction form
    8,747.90/13,121.92 = 3,201.44/x
  3. Step 3: Cross multiply
    8,747.90x = 13,121.92 × 3,201.44
  4. Step 4: Simplify right side
    8,747.90x = 42,009,039.56
  5. Step 5: Solve for x
    x = 42,009,039.56/8,747.90
  6. Step 6: Final answer
    x = 4,802.19

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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.