Home / 18,823.65-25,958.82-11,268.78

Finding the Fourth Proportional to 18,823.65, 25,958.82 and 11,268.78

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Solution

The fourth proportional to 18,823.65, 25,958.82 and 11,268.78 is: 15,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.65 : 25,958.82 = 11,268.78 : x
  2. Step 2: Convert to fraction form
    18,823.65/25,958.82 = 11,268.78/x
  3. Step 3: Cross multiply
    18,823.65x = 25,958.82 × 11,268.78
  4. Step 4: Simplify right side
    18,823.65x = 292,524,231.64
  5. Step 5: Solve for x
    x = 292,524,231.64/18,823.65
  6. Step 6: Final answer
    x = 15,540.25

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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.