Home / 7,942.66-11,914.41-2,099.11

Finding the Fourth Proportional to 7,942.66, 11,914.41 and 2,099.11

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Solution

The fourth proportional to 7,942.66, 11,914.41 and 2,099.11 is: 3,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.66 : 11,914.41 = 2,099.11 : x
  2. Step 2: Convert to fraction form
    7,942.66/11,914.41 = 2,099.11/x
  3. Step 3: Cross multiply
    7,942.66x = 11,914.41 × 2,099.11
  4. Step 4: Simplify right side
    7,942.66x = 25,009,657.18
  5. Step 5: Solve for x
    x = 25,009,657.18/7,942.66
  6. Step 6: Final answer
    x = 3,148.78

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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.