Home / 13,170.88-19,756.96-3,936

Finding the Fourth Proportional to 13,170.88, 19,756.96 and 3,936

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Solution

The fourth proportional to 13,170.88, 19,756.96 and 3,936 is: 5,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.88 : 19,756.96 = 3,936 : x
  2. Step 2: Convert to fraction form
    13,170.88/19,756.96 = 3,936/x
  3. Step 3: Cross multiply
    13,170.88x = 19,756.96 × 3,936
  4. Step 4: Simplify right side
    13,170.88x = 77,763,394.56
  5. Step 5: Solve for x
    x = 77,763,394.56/13,170.88
  6. Step 6: Final answer
    x = 5,904.19

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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.