Home / 7,947.74-11,920.44-2,104.76

Finding the Fourth Proportional to 7,947.74, 11,920.44 and 2,104.76

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Solution

The fourth proportional to 7,947.74, 11,920.44 and 2,104.76 is: 3,156.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.74 : 11,920.44 = 2,104.76 : x
  2. Step 2: Convert to fraction form
    7,947.74/11,920.44 = 2,104.76/x
  3. Step 3: Cross multiply
    7,947.74x = 11,920.44 × 2,104.76
  4. Step 4: Simplify right side
    7,947.74x = 25,089,665.29
  5. Step 5: Solve for x
    x = 25,089,665.29/7,947.74
  6. Step 6: Final answer
    x = 3,156.83

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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.