Home / 13,426.31-20,134.67-5,104.11

Finding the Fourth Proportional to 13,426.31, 20,134.67 and 5,104.11

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Solution

The fourth proportional to 13,426.31, 20,134.67 and 5,104.11 is: 7,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.31 : 20,134.67 = 5,104.11 : x
  2. Step 2: Convert to fraction form
    13,426.31/20,134.67 = 5,104.11/x
  3. Step 3: Cross multiply
    13,426.31x = 20,134.67 × 5,104.11
  4. Step 4: Simplify right side
    13,426.31x = 102,769,544.97
  5. Step 5: Solve for x
    x = 102,769,544.97/13,426.31
  6. Step 6: Final answer
    x = 7,654.34

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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.