Home / 13,942.76-19,238.15-7,976.43

Finding the Fourth Proportional to 13,942.76, 19,238.15 and 7,976.43

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Solution

The fourth proportional to 13,942.76, 19,238.15 and 7,976.43 is: 11,005.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.76 : 19,238.15 = 7,976.43 : x
  2. Step 2: Convert to fraction form
    13,942.76/19,238.15 = 7,976.43/x
  3. Step 3: Cross multiply
    13,942.76x = 19,238.15 × 7,976.43
  4. Step 4: Simplify right side
    13,942.76x = 153,451,716.92
  5. Step 5: Solve for x
    x = 153,451,716.92/13,942.76
  6. Step 6: Final answer
    x = 11,005.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.