Home / 11,912.40-17,867.34-4,893.15

Finding the Fourth Proportional to 11,912.40, 17,867.34 and 4,893.15

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Solution

The fourth proportional to 11,912.40, 17,867.34 and 4,893.15 is: 7,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.40 : 17,867.34 = 4,893.15 : x
  2. Step 2: Convert to fraction form
    11,912.40/17,867.34 = 4,893.15/x
  3. Step 3: Cross multiply
    11,912.40x = 17,867.34 × 4,893.15
  4. Step 4: Simplify right side
    11,912.40x = 87,427,574.72
  5. Step 5: Solve for x
    x = 87,427,574.72/11,912.40
  6. Step 6: Final answer
    x = 7,339.21

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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.