Home / 18,268.09-27,376.71-10,255.78

Finding the Fourth Proportional to 18,268.09, 27,376.71 and 10,255.78

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Solution

The fourth proportional to 18,268.09, 27,376.71 and 10,255.78 is: 15,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.09 : 27,376.71 = 10,255.78 : x
  2. Step 2: Convert to fraction form
    18,268.09/27,376.71 = 10,255.78/x
  3. Step 3: Cross multiply
    18,268.09x = 27,376.71 × 10,255.78
  4. Step 4: Simplify right side
    18,268.09x = 280,769,514.88
  5. Step 5: Solve for x
    x = 280,769,514.88/18,268.09
  6. Step 6: Final answer
    x = 15,369.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.