Home / 18,958.12-26,161.82-11,001.12

Finding the Fourth Proportional to 18,958.12, 26,161.82 and 11,001.12

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Solution

The fourth proportional to 18,958.12, 26,161.82 and 11,001.12 is: 15,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.12 : 26,161.82 = 11,001.12 : x
  2. Step 2: Convert to fraction form
    18,958.12/26,161.82 = 11,001.12/x
  3. Step 3: Cross multiply
    18,958.12x = 26,161.82 × 11,001.12
  4. Step 4: Simplify right side
    18,958.12x = 287,809,321.24
  5. Step 5: Solve for x
    x = 287,809,321.24/18,958.12
  6. Step 6: Final answer
    x = 15,181.32

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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.