Home / 18,982.96-26,195.33-11,431.73

Finding the Fourth Proportional to 18,982.96, 26,195.33 and 11,431.73

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Solution

The fourth proportional to 18,982.96, 26,195.33 and 11,431.73 is: 15,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.96 : 26,195.33 = 11,431.73 : x
  2. Step 2: Convert to fraction form
    18,982.96/26,195.33 = 11,431.73/x
  3. Step 3: Cross multiply
    18,982.96x = 26,195.33 × 11,431.73
  4. Step 4: Simplify right side
    18,982.96x = 299,458,033.89
  5. Step 5: Solve for x
    x = 299,458,033.89/18,982.96
  6. Step 6: Final answer
    x = 15,775.10

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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.