Home / 10,231.96-15,348.15-3,211.84

Finding the Fourth Proportional to 10,231.96, 15,348.15 and 3,211.84

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Solution

The fourth proportional to 10,231.96, 15,348.15 and 3,211.84 is: 4,817.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.96 : 15,348.15 = 3,211.84 : x
  2. Step 2: Convert to fraction form
    10,231.96/15,348.15 = 3,211.84/x
  3. Step 3: Cross multiply
    10,231.96x = 15,348.15 × 3,211.84
  4. Step 4: Simplify right side
    10,231.96x = 49,295,802.10
  5. Step 5: Solve for x
    x = 49,295,802.10/10,231.96
  6. Step 6: Final answer
    x = 4,817.83

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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.