Home / 18,363.41-27,544.62-5,215.78

Finding the Fourth Proportional to 18,363.41, 27,544.62 and 5,215.78

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Solution

The fourth proportional to 18,363.41, 27,544.62 and 5,215.78 is: 7,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.41 : 27,544.62 = 5,215.78 : x
  2. Step 2: Convert to fraction form
    18,363.41/27,544.62 = 5,215.78/x
  3. Step 3: Cross multiply
    18,363.41x = 27,544.62 × 5,215.78
  4. Step 4: Simplify right side
    18,363.41x = 143,666,540.38
  5. Step 5: Solve for x
    x = 143,666,540.38/18,363.41
  6. Step 6: Final answer
    x = 7,823.52

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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.