Home / 18,205.78-25,126.38-10,249.56

Finding the Fourth Proportional to 18,205.78, 25,126.38 and 10,249.56

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Solution

The fourth proportional to 18,205.78, 25,126.38 and 10,249.56 is: 14,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.78 : 25,126.38 = 10,249.56 : x
  2. Step 2: Convert to fraction form
    18,205.78/25,126.38 = 10,249.56/x
  3. Step 3: Cross multiply
    18,205.78x = 25,126.38 × 10,249.56
  4. Step 4: Simplify right side
    18,205.78x = 257,534,339.39
  5. Step 5: Solve for x
    x = 257,534,339.39/18,205.78
  6. Step 6: Final answer
    x = 14,145.75

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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.