Home / 18,514.59-25,550.08-10,131.09

Finding the Fourth Proportional to 18,514.59, 25,550.08 and 10,131.09

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Solution

The fourth proportional to 18,514.59, 25,550.08 and 10,131.09 is: 13,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.59 : 25,550.08 = 10,131.09 : x
  2. Step 2: Convert to fraction form
    18,514.59/25,550.08 = 10,131.09/x
  3. Step 3: Cross multiply
    18,514.59x = 25,550.08 × 10,131.09
  4. Step 4: Simplify right side
    18,514.59x = 258,850,159.99
  5. Step 5: Solve for x
    x = 258,850,159.99/18,514.59
  6. Step 6: Final answer
    x = 13,980.87

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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.