Home / 11,971.92-17,957.88-4,180.56

Finding the Fourth Proportional to 11,971.92, 17,957.88 and 4,180.56

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Solution

The fourth proportional to 11,971.92, 17,957.88 and 4,180.56 is: 6,270.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.92 : 17,957.88 = 4,180.56 : x
  2. Step 2: Convert to fraction form
    11,971.92/17,957.88 = 4,180.56/x
  3. Step 3: Cross multiply
    11,971.92x = 17,957.88 × 4,180.56
  4. Step 4: Simplify right side
    11,971.92x = 75,073,994.81
  5. Step 5: Solve for x
    x = 75,073,994.81/11,971.92
  6. Step 6: Final answer
    x = 6,270.84

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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.