Home / 11,961.53-17,945.91-8,637.29

Finding the Fourth Proportional to 11,961.53, 17,945.91 and 8,637.29

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Solution

The fourth proportional to 11,961.53, 17,945.91 and 8,637.29 is: 12,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.53 : 17,945.91 = 8,637.29 : x
  2. Step 2: Convert to fraction form
    11,961.53/17,945.91 = 8,637.29/x
  3. Step 3: Cross multiply
    11,961.53x = 17,945.91 × 8,637.29
  4. Step 4: Simplify right side
    11,961.53x = 155,004,028.98
  5. Step 5: Solve for x
    x = 155,004,028.98/11,961.53
  6. Step 6: Final answer
    x = 12,958.55

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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.