Home / 18,514.75-25,550.36-10,131.25

Finding the Fourth Proportional to 18,514.75, 25,550.36 and 10,131.25

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Solution

The fourth proportional to 18,514.75, 25,550.36 and 10,131.25 is: 13,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.75 : 25,550.36 = 10,131.25 : x
  2. Step 2: Convert to fraction form
    18,514.75/25,550.36 = 10,131.25/x
  3. Step 3: Cross multiply
    18,514.75x = 25,550.36 × 10,131.25
  4. Step 4: Simplify right side
    18,514.75x = 258,857,034.09
  5. Step 5: Solve for x
    x = 258,857,034.09/18,514.75
  6. Step 6: Final answer
    x = 13,981.13

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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.