Home / 10,286.62-15,405.32-9,769.95

Finding the Fourth Proportional to 10,286.62, 15,405.32 and 9,769.95

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Solution

The fourth proportional to 10,286.62, 15,405.32 and 9,769.95 is: 14,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.62 : 15,405.32 = 9,769.95 : x
  2. Step 2: Convert to fraction form
    10,286.62/15,405.32 = 9,769.95/x
  3. Step 3: Cross multiply
    10,286.62x = 15,405.32 × 9,769.95
  4. Step 4: Simplify right side
    10,286.62x = 150,509,230.56
  5. Step 5: Solve for x
    x = 150,509,230.56/10,286.62
  6. Step 6: Final answer
    x = 14,631.56

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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.