Home / 18,207.12-25,122.24-10,249.68

Finding the Fourth Proportional to 18,207.12, 25,122.24 and 10,249.68

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Solution

The fourth proportional to 18,207.12, 25,122.24 and 10,249.68 is: 14,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.12 : 25,122.24 = 10,249.68 : x
  2. Step 2: Convert to fraction form
    18,207.12/25,122.24 = 10,249.68/x
  3. Step 3: Cross multiply
    18,207.12x = 25,122.24 × 10,249.68
  4. Step 4: Simplify right side
    18,207.12x = 257,494,920.88
  5. Step 5: Solve for x
    x = 257,494,920.88/18,207.12
  6. Step 6: Final answer
    x = 14,142.54

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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.