Home / 7,947.76-11,922.74-2,684.28

Finding the Fourth Proportional to 7,947.76, 11,922.74 and 2,684.28

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Solution

The fourth proportional to 7,947.76, 11,922.74 and 2,684.28 is: 4,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.76 : 11,922.74 = 2,684.28 : x
  2. Step 2: Convert to fraction form
    7,947.76/11,922.74 = 2,684.28/x
  3. Step 3: Cross multiply
    7,947.76x = 11,922.74 × 2,684.28
  4. Step 4: Simplify right side
    7,947.76x = 32,003,972.53
  5. Step 5: Solve for x
    x = 32,003,972.53/7,947.76
  6. Step 6: Final answer
    x = 4,026.79

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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.