Home / 13,391.96-20,090.87-5,072.03

Finding the Fourth Proportional to 13,391.96, 20,090.87 and 5,072.03

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Solution

The fourth proportional to 13,391.96, 20,090.87 and 5,072.03 is: 7,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.96 : 20,090.87 = 5,072.03 : x
  2. Step 2: Convert to fraction form
    13,391.96/20,090.87 = 5,072.03/x
  3. Step 3: Cross multiply
    13,391.96x = 20,090.87 × 5,072.03
  4. Step 4: Simplify right side
    13,391.96x = 101,901,545.59
  5. Step 5: Solve for x
    x = 101,901,545.59/13,391.96
  6. Step 6: Final answer
    x = 7,609.16

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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.