Home / 7,965.26-11,947.68-3,808.20

Finding the Fourth Proportional to 7,965.26, 11,947.68 and 3,808.20

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Solution

The fourth proportional to 7,965.26, 11,947.68 and 3,808.20 is: 5,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.26 : 11,947.68 = 3,808.20 : x
  2. Step 2: Convert to fraction form
    7,965.26/11,947.68 = 3,808.20/x
  3. Step 3: Cross multiply
    7,965.26x = 11,947.68 × 3,808.20
  4. Step 4: Simplify right side
    7,965.26x = 45,499,154.98
  5. Step 5: Solve for x
    x = 45,499,154.98/7,965.26
  6. Step 6: Final answer
    x = 5,712.20

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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.