Home / 18,726.43-25,841.41-11,181.28

Finding the Fourth Proportional to 18,726.43, 25,841.41 and 11,181.28

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Solution

The fourth proportional to 18,726.43, 25,841.41 and 11,181.28 is: 15,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.43 : 25,841.41 = 11,181.28 : x
  2. Step 2: Convert to fraction form
    18,726.43/25,841.41 = 11,181.28/x
  3. Step 3: Cross multiply
    18,726.43x = 25,841.41 × 11,181.28
  4. Step 4: Simplify right side
    18,726.43x = 288,940,040.80
  5. Step 5: Solve for x
    x = 288,940,040.80/18,726.43
  6. Step 6: Final answer
    x = 15,429.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.