Home / 13,383.85-20,062.40-8,945.25

Finding the Fourth Proportional to 13,383.85, 20,062.40 and 8,945.25

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Solution

The fourth proportional to 13,383.85, 20,062.40 and 8,945.25 is: 13,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.85 : 20,062.40 = 8,945.25 : x
  2. Step 2: Convert to fraction form
    13,383.85/20,062.40 = 8,945.25/x
  3. Step 3: Cross multiply
    13,383.85x = 20,062.40 × 8,945.25
  4. Step 4: Simplify right side
    13,383.85x = 179,463,183.60
  5. Step 5: Solve for x
    x = 179,463,183.60/13,383.85
  6. Step 6: Final answer
    x = 13,408.94

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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.