Home / 18,514.68-25,550.46-10,131

Finding the Fourth Proportional to 18,514.68, 25,550.46 and 10,131

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Solution

The fourth proportional to 18,514.68, 25,550.46 and 10,131 is: 13,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.68 : 25,550.46 = 10,131 : x
  2. Step 2: Convert to fraction form
    18,514.68/25,550.46 = 10,131/x
  3. Step 3: Cross multiply
    18,514.68x = 25,550.46 × 10,131
  4. Step 4: Simplify right side
    18,514.68x = 258,851,710.26
  5. Step 5: Solve for x
    x = 258,851,710.26/18,514.68
  6. Step 6: Final answer
    x = 13,980.89

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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.