Home / 10,286.38-15,432.81-3,365.74

Finding the Fourth Proportional to 10,286.38, 15,432.81 and 3,365.74

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Solution

The fourth proportional to 10,286.38, 15,432.81 and 3,365.74 is: 5,049.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.38 : 15,432.81 = 3,365.74 : x
  2. Step 2: Convert to fraction form
    10,286.38/15,432.81 = 3,365.74/x
  3. Step 3: Cross multiply
    10,286.38x = 15,432.81 × 3,365.74
  4. Step 4: Simplify right side
    10,286.38x = 51,942,825.93
  5. Step 5: Solve for x
    x = 51,942,825.93/10,286.38
  6. Step 6: Final answer
    x = 5,049.67

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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.