Home / 7,794.18-11,687.28-3,409.62

Finding the Fourth Proportional to 7,794.18, 11,687.28 and 3,409.62

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Solution

The fourth proportional to 7,794.18, 11,687.28 and 3,409.62 is: 5,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.18 : 11,687.28 = 3,409.62 : x
  2. Step 2: Convert to fraction form
    7,794.18/11,687.28 = 3,409.62/x
  3. Step 3: Cross multiply
    7,794.18x = 11,687.28 × 3,409.62
  4. Step 4: Simplify right side
    7,794.18x = 39,849,183.63
  5. Step 5: Solve for x
    x = 39,849,183.63/7,794.18
  6. Step 6: Final answer
    x = 5,112.68

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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.