Home / 18,781.07-28,172.51-6,299.83

Finding the Fourth Proportional to 18,781.07, 28,172.51 and 6,299.83

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Solution

The fourth proportional to 18,781.07, 28,172.51 and 6,299.83 is: 9,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.07 : 28,172.51 = 6,299.83 : x
  2. Step 2: Convert to fraction form
    18,781.07/28,172.51 = 6,299.83/x
  3. Step 3: Cross multiply
    18,781.07x = 28,172.51 × 6,299.83
  4. Step 4: Simplify right side
    18,781.07x = 177,481,892.54
  5. Step 5: Solve for x
    x = 177,481,892.54/18,781.07
  6. Step 6: Final answer
    x = 9,450.04

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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.