Home / 11,928.86-17,896.50-4,137.68

Finding the Fourth Proportional to 11,928.86, 17,896.50 and 4,137.68

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Solution

The fourth proportional to 11,928.86, 17,896.50 and 4,137.68 is: 6,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.86 : 17,896.50 = 4,137.68 : x
  2. Step 2: Convert to fraction form
    11,928.86/17,896.50 = 4,137.68/x
  3. Step 3: Cross multiply
    11,928.86x = 17,896.50 × 4,137.68
  4. Step 4: Simplify right side
    11,928.86x = 74,049,990.12
  5. Step 5: Solve for x
    x = 74,049,990.12/11,928.86
  6. Step 6: Final answer
    x = 6,207.63

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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.