Home / 11,942.12-17,912.10-3,176.70

Finding the Fourth Proportional to 11,942.12, 17,912.10 and 3,176.70

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Solution

The fourth proportional to 11,942.12, 17,912.10 and 3,176.70 is: 4,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.12 : 17,912.10 = 3,176.70 : x
  2. Step 2: Convert to fraction form
    11,942.12/17,912.10 = 3,176.70/x
  3. Step 3: Cross multiply
    11,942.12x = 17,912.10 × 3,176.70
  4. Step 4: Simplify right side
    11,942.12x = 56,901,368.07
  5. Step 5: Solve for x
    x = 56,901,368.07/11,942.12
  6. Step 6: Final answer
    x = 4,764.76

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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.