Home / 8,821.22-13,221.39-3,880.52

Finding the Fourth Proportional to 8,821.22, 13,221.39 and 3,880.52

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Solution

The fourth proportional to 8,821.22, 13,221.39 and 3,880.52 is: 5,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.22 : 13,221.39 = 3,880.52 : x
  2. Step 2: Convert to fraction form
    8,821.22/13,221.39 = 3,880.52/x
  3. Step 3: Cross multiply
    8,821.22x = 13,221.39 × 3,880.52
  4. Step 4: Simplify right side
    8,821.22x = 51,305,802.22
  5. Step 5: Solve for x
    x = 51,305,802.22/8,821.22
  6. Step 6: Final answer
    x = 5,816.18

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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.