Home / 13,600.49-20,398.39-3,605.30

Finding the Fourth Proportional to 13,600.49, 20,398.39 and 3,605.30

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Solution

The fourth proportional to 13,600.49, 20,398.39 and 3,605.30 is: 5,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.49 : 20,398.39 = 3,605.30 : x
  2. Step 2: Convert to fraction form
    13,600.49/20,398.39 = 3,605.30/x
  3. Step 3: Cross multiply
    13,600.49x = 20,398.39 × 3,605.30
  4. Step 4: Simplify right side
    13,600.49x = 73,542,383.89
  5. Step 5: Solve for x
    x = 73,542,383.89/13,600.49
  6. Step 6: Final answer
    x = 5,407.33

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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.