Home / 18,621.03-27,940.65-8,761.29

Finding the Fourth Proportional to 18,621.03, 27,940.65 and 8,761.29

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Solution

The fourth proportional to 18,621.03, 27,940.65 and 8,761.29 is: 13,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.03 : 27,940.65 = 8,761.29 : x
  2. Step 2: Convert to fraction form
    18,621.03/27,940.65 = 8,761.29/x
  3. Step 3: Cross multiply
    18,621.03x = 27,940.65 × 8,761.29
  4. Step 4: Simplify right side
    18,621.03x = 244,796,137.44
  5. Step 5: Solve for x
    x = 244,796,137.44/18,621.03
  6. Step 6: Final answer
    x = 13,146.22

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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.