Home / 13,421.44-20,133.24-5,626

Finding the Fourth Proportional to 13,421.44, 20,133.24 and 5,626

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Solution

The fourth proportional to 13,421.44, 20,133.24 and 5,626 is: 8,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.44 : 20,133.24 = 5,626 : x
  2. Step 2: Convert to fraction form
    13,421.44/20,133.24 = 5,626/x
  3. Step 3: Cross multiply
    13,421.44x = 20,133.24 × 5,626
  4. Step 4: Simplify right side
    13,421.44x = 113,269,608.24
  5. Step 5: Solve for x
    x = 113,269,608.24/13,421.44
  6. Step 6: Final answer
    x = 8,439.45

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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.