Home / 11,837.76-17,756.55-3,940.86

Finding the Fourth Proportional to 11,837.76, 17,756.55 and 3,940.86

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Solution

The fourth proportional to 11,837.76, 17,756.55 and 3,940.86 is: 5,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.76 : 17,756.55 = 3,940.86 : x
  2. Step 2: Convert to fraction form
    11,837.76/17,756.55 = 3,940.86/x
  3. Step 3: Cross multiply
    11,837.76x = 17,756.55 × 3,940.86
  4. Step 4: Simplify right side
    11,837.76x = 69,976,077.63
  5. Step 5: Solve for x
    x = 69,976,077.63/11,837.76
  6. Step 6: Final answer
    x = 5,911.26

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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.