Home / 18,633.28-25,713.40-10,249.78

Finding the Fourth Proportional to 18,633.28, 25,713.40 and 10,249.78

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Solution

The fourth proportional to 18,633.28, 25,713.40 and 10,249.78 is: 14,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.28 : 25,713.40 = 10,249.78 : x
  2. Step 2: Convert to fraction form
    18,633.28/25,713.40 = 10,249.78/x
  3. Step 3: Cross multiply
    18,633.28x = 25,713.40 × 10,249.78
  4. Step 4: Simplify right side
    18,633.28x = 263,556,693.05
  5. Step 5: Solve for x
    x = 263,556,693.05/18,633.28
  6. Step 6: Final answer
    x = 14,144.41

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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.