Home / 13,501.24-20,249.26-3,638.05

Finding the Fourth Proportional to 13,501.24, 20,249.26 and 3,638.05

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Solution

The fourth proportional to 13,501.24, 20,249.26 and 3,638.05 is: 5,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.24 : 20,249.26 = 3,638.05 : x
  2. Step 2: Convert to fraction form
    13,501.24/20,249.26 = 3,638.05/x
  3. Step 3: Cross multiply
    13,501.24x = 20,249.26 × 3,638.05
  4. Step 4: Simplify right side
    13,501.24x = 73,667,760.62
  5. Step 5: Solve for x
    x = 73,667,760.62/13,501.24
  6. Step 6: Final answer
    x = 5,456.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.