Home / 18,419.92-25,408.41-11,246.56

Finding the Fourth Proportional to 18,419.92, 25,408.41 and 11,246.56

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Solution

The fourth proportional to 18,419.92, 25,408.41 and 11,246.56 is: 15,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.92 : 25,408.41 = 11,246.56 : x
  2. Step 2: Convert to fraction form
    18,419.92/25,408.41 = 11,246.56/x
  3. Step 3: Cross multiply
    18,419.92x = 25,408.41 × 11,246.56
  4. Step 4: Simplify right side
    18,419.92x = 285,757,299.21
  5. Step 5: Solve for x
    x = 285,757,299.21/18,419.92
  6. Step 6: Final answer
    x = 15,513.49

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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.