Home / 18,514.80-25,551.03-10,131.30

Finding the Fourth Proportional to 18,514.80, 25,551.03 and 10,131.30

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Solution

The fourth proportional to 18,514.80, 25,551.03 and 10,131.30 is: 13,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.80 : 25,551.03 = 10,131.30 : x
  2. Step 2: Convert to fraction form
    18,514.80/25,551.03 = 10,131.30/x
  3. Step 3: Cross multiply
    18,514.80x = 25,551.03 × 10,131.30
  4. Step 4: Simplify right side
    18,514.80x = 258,865,150.24
  5. Step 5: Solve for x
    x = 258,865,150.24/18,514.80
  6. Step 6: Final answer
    x = 13,981.53

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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.