Home / 13,408.11-20,107.37-5,090.38

Finding the Fourth Proportional to 13,408.11, 20,107.37 and 5,090.38

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Solution

The fourth proportional to 13,408.11, 20,107.37 and 5,090.38 is: 7,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.11 : 20,107.37 = 5,090.38 : x
  2. Step 2: Convert to fraction form
    13,408.11/20,107.37 = 5,090.38/x
  3. Step 3: Cross multiply
    13,408.11x = 20,107.37 × 5,090.38
  4. Step 4: Simplify right side
    13,408.11x = 102,354,116.56
  5. Step 5: Solve for x
    x = 102,354,116.56/13,408.11
  6. Step 6: Final answer
    x = 7,633.75

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1.5x scale

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.