Home / 13,958.26-20,939.67-4,097.86

Finding the Fourth Proportional to 13,958.26, 20,939.67 and 4,097.86

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Solution

The fourth proportional to 13,958.26, 20,939.67 and 4,097.86 is: 6,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.26 : 20,939.67 = 4,097.86 : x
  2. Step 2: Convert to fraction form
    13,958.26/20,939.67 = 4,097.86/x
  3. Step 3: Cross multiply
    13,958.26x = 20,939.67 × 4,097.86
  4. Step 4: Simplify right side
    13,958.26x = 85,807,836.11
  5. Step 5: Solve for x
    x = 85,807,836.11/13,958.26
  6. Step 6: Final answer
    x = 6,147.46

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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.