Home / 11,942.86-17,894.34-8,427.06

Finding the Fourth Proportional to 11,942.86, 17,894.34 and 8,427.06

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Solution

The fourth proportional to 11,942.86, 17,894.34 and 8,427.06 is: 12,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.86 : 17,894.34 = 8,427.06 : x
  2. Step 2: Convert to fraction form
    11,942.86/17,894.34 = 8,427.06/x
  3. Step 3: Cross multiply
    11,942.86x = 17,894.34 × 8,427.06
  4. Step 4: Simplify right side
    11,942.86x = 150,796,587.37
  5. Step 5: Solve for x
    x = 150,796,587.37/11,942.86
  6. Step 6: Final answer
    x = 12,626.51

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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.