Home / 7,965.03-11,947.83-2,121.66

Finding the Fourth Proportional to 7,965.03, 11,947.83 and 2,121.66

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Solution

The fourth proportional to 7,965.03, 11,947.83 and 2,121.66 is: 3,182.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.03 : 11,947.83 = 2,121.66 : x
  2. Step 2: Convert to fraction form
    7,965.03/11,947.83 = 2,121.66/x
  3. Step 3: Cross multiply
    7,965.03x = 11,947.83 × 2,121.66
  4. Step 4: Simplify right side
    7,965.03x = 25,349,233.00
  5. Step 5: Solve for x
    x = 25,349,233.00/7,965.03
  6. Step 6: Final answer
    x = 3,182.57

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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.