Home / 8,722.98-13,080.33-3,172.41

Finding the Fourth Proportional to 8,722.98, 13,080.33 and 3,172.41

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Solution

The fourth proportional to 8,722.98, 13,080.33 and 3,172.41 is: 4,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.98 : 13,080.33 = 3,172.41 : x
  2. Step 2: Convert to fraction form
    8,722.98/13,080.33 = 3,172.41/x
  3. Step 3: Cross multiply
    8,722.98x = 13,080.33 × 3,172.41
  4. Step 4: Simplify right side
    8,722.98x = 41,496,169.70
  5. Step 5: Solve for x
    x = 41,496,169.70/8,722.98
  6. Step 6: Final answer
    x = 4,757.11

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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.