Home / 7,942.78-11,914.17-2,099.17

Finding the Fourth Proportional to 7,942.78, 11,914.17 and 2,099.17

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Solution

The fourth proportional to 7,942.78, 11,914.17 and 2,099.17 is: 3,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.78 : 11,914.17 = 2,099.17 : x
  2. Step 2: Convert to fraction form
    7,942.78/11,914.17 = 2,099.17/x
  3. Step 3: Cross multiply
    7,942.78x = 11,914.17 × 2,099.17
  4. Step 4: Simplify right side
    7,942.78x = 25,009,868.24
  5. Step 5: Solve for x
    x = 25,009,868.24/7,942.78
  6. Step 6: Final answer
    x = 3,148.76

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Similar ratio
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1.5x scale

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.