Home / 11,757.12-17,638.50-3,860.10

Finding the Fourth Proportional to 11,757.12, 17,638.50 and 3,860.10

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Solution

The fourth proportional to 11,757.12, 17,638.50 and 3,860.10 is: 5,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.12 : 17,638.50 = 3,860.10 : x
  2. Step 2: Convert to fraction form
    11,757.12/17,638.50 = 3,860.10/x
  3. Step 3: Cross multiply
    11,757.12x = 17,638.50 × 3,860.10
  4. Step 4: Simplify right side
    11,757.12x = 68,086,373.85
  5. Step 5: Solve for x
    x = 68,086,373.85/11,757.12
  6. Step 6: Final answer
    x = 5,791.08

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1.5x scale

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.