Home / 10,211.76-15,318.63-3,972.27

Finding the Fourth Proportional to 10,211.76, 15,318.63 and 3,972.27

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Solution

The fourth proportional to 10,211.76, 15,318.63 and 3,972.27 is: 5,958.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.76 : 15,318.63 = 3,972.27 : x
  2. Step 2: Convert to fraction form
    10,211.76/15,318.63 = 3,972.27/x
  3. Step 3: Cross multiply
    10,211.76x = 15,318.63 × 3,972.27
  4. Step 4: Simplify right side
    10,211.76x = 60,849,734.39
  5. Step 5: Solve for x
    x = 60,849,734.39/10,211.76
  6. Step 6: Final answer
    x = 5,958.79

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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.