Home / 18,299.49-27,428.04-8,418.03

Finding the Fourth Proportional to 18,299.49, 27,428.04 and 8,418.03

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Solution

The fourth proportional to 18,299.49, 27,428.04 and 8,418.03 is: 12,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.49 : 27,428.04 = 8,418.03 : x
  2. Step 2: Convert to fraction form
    18,299.49/27,428.04 = 8,418.03/x
  3. Step 3: Cross multiply
    18,299.49x = 27,428.04 × 8,418.03
  4. Step 4: Simplify right side
    18,299.49x = 230,890,063.56
  5. Step 5: Solve for x
    x = 230,890,063.56/18,299.49
  6. Step 6: Final answer
    x = 12,617.29

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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.