Home / 7,971.11-11,954.24-2,126.96

Finding the Fourth Proportional to 7,971.11, 11,954.24 and 2,126.96

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Solution

The fourth proportional to 7,971.11, 11,954.24 and 2,126.96 is: 3,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.11 : 11,954.24 = 2,126.96 : x
  2. Step 2: Convert to fraction form
    7,971.11/11,954.24 = 2,126.96/x
  3. Step 3: Cross multiply
    7,971.11x = 11,954.24 × 2,126.96
  4. Step 4: Simplify right side
    7,971.11x = 25,426,179.68
  5. Step 5: Solve for x
    x = 25,426,179.68/7,971.11
  6. Step 6: Final answer
    x = 3,189.79

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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.