Home / 10,213.26-15,318-3,639.66

Finding the Fourth Proportional to 10,213.26, 15,318 and 3,639.66

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Solution

The fourth proportional to 10,213.26, 15,318 and 3,639.66 is: 5,458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.26 : 15,318 = 3,639.66 : x
  2. Step 2: Convert to fraction form
    10,213.26/15,318 = 3,639.66/x
  3. Step 3: Cross multiply
    10,213.26x = 15,318 × 3,639.66
  4. Step 4: Simplify right side
    10,213.26x = 55,752,311.88
  5. Step 5: Solve for x
    x = 55,752,311.88/10,213.26
  6. Step 6: Final answer
    x = 5,458.82

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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.