Home / 11,912.66-17,870.44-6,371.54

Finding the Fourth Proportional to 11,912.66, 17,870.44 and 6,371.54

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Solution

The fourth proportional to 11,912.66, 17,870.44 and 6,371.54 is: 9,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.66 : 17,870.44 = 6,371.54 : x
  2. Step 2: Convert to fraction form
    11,912.66/17,870.44 = 6,371.54/x
  3. Step 3: Cross multiply
    11,912.66x = 17,870.44 × 6,371.54
  4. Step 4: Simplify right side
    11,912.66x = 113,862,223.28
  5. Step 5: Solve for x
    x = 113,862,223.28/11,912.66
  6. Step 6: Final answer
    x = 9,558.09

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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.