Home / 11,138.45-16,707.87-5,293.89

Finding the Fourth Proportional to 11,138.45, 16,707.87 and 5,293.89

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Solution

The fourth proportional to 11,138.45, 16,707.87 and 5,293.89 is: 7,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.45 : 16,707.87 = 5,293.89 : x
  2. Step 2: Convert to fraction form
    11,138.45/16,707.87 = 5,293.89/x
  3. Step 3: Cross multiply
    11,138.45x = 16,707.87 × 5,293.89
  4. Step 4: Simplify right side
    11,138.45x = 88,449,625.91
  5. Step 5: Solve for x
    x = 88,449,625.91/11,138.45
  6. Step 6: Final answer
    x = 7,940.93

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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.