Home / 18,181.30-25,092.09-11,112.43

Finding the Fourth Proportional to 18,181.30, 25,092.09 and 11,112.43

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Solution

The fourth proportional to 18,181.30, 25,092.09 and 11,112.43 is: 15,336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.30 : 25,092.09 = 11,112.43 : x
  2. Step 2: Convert to fraction form
    18,181.30/25,092.09 = 11,112.43/x
  3. Step 3: Cross multiply
    18,181.30x = 25,092.09 × 11,112.43
  4. Step 4: Simplify right side
    18,181.30x = 278,833,912.66
  5. Step 5: Solve for x
    x = 278,833,912.66/18,181.30
  6. Step 6: Final answer
    x = 15,336.31

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1.5x scale

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.