Home / 11,938.86-17,908.26-3,173.77

Finding the Fourth Proportional to 11,938.86, 17,908.26 and 3,173.77

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Solution

The fourth proportional to 11,938.86, 17,908.26 and 3,173.77 is: 4,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.86 : 17,908.26 = 3,173.77 : x
  2. Step 2: Convert to fraction form
    11,938.86/17,908.26 = 3,173.77/x
  3. Step 3: Cross multiply
    11,938.86x = 17,908.26 × 3,173.77
  4. Step 4: Simplify right side
    11,938.86x = 56,836,698.34
  5. Step 5: Solve for x
    x = 56,836,698.34/11,938.86
  6. Step 6: Final answer
    x = 4,760.65

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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.