Home / 13,982.34-20,958.78-7,042.26

Finding the Fourth Proportional to 13,982.34, 20,958.78 and 7,042.26

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Solution

The fourth proportional to 13,982.34, 20,958.78 and 7,042.26 is: 10,555.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.34 : 20,958.78 = 7,042.26 : x
  2. Step 2: Convert to fraction form
    13,982.34/20,958.78 = 7,042.26/x
  3. Step 3: Cross multiply
    13,982.34x = 20,958.78 × 7,042.26
  4. Step 4: Simplify right side
    13,982.34x = 147,597,178.04
  5. Step 5: Solve for x
    x = 147,597,178.04/13,982.34
  6. Step 6: Final answer
    x = 10,555.97

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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.