Home / 18,207.21-25,126.42-10,249.72

Finding the Fourth Proportional to 18,207.21, 25,126.42 and 10,249.72

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Solution

The fourth proportional to 18,207.21, 25,126.42 and 10,249.72 is: 14,144.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.21 : 25,126.42 = 10,249.72 : x
  2. Step 2: Convert to fraction form
    18,207.21/25,126.42 = 10,249.72/x
  3. Step 3: Cross multiply
    18,207.21x = 25,126.42 × 10,249.72
  4. Step 4: Simplify right side
    18,207.21x = 257,538,769.60
  5. Step 5: Solve for x
    x = 257,538,769.60/18,207.21
  6. Step 6: Final answer
    x = 14,144.88

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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.