Home / 11,986.16-17,981.82-3,666.75

Finding the Fourth Proportional to 11,986.16, 17,981.82 and 3,666.75

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Solution

The fourth proportional to 11,986.16, 17,981.82 and 3,666.75 is: 5,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.16 : 17,981.82 = 3,666.75 : x
  2. Step 2: Convert to fraction form
    11,986.16/17,981.82 = 3,666.75/x
  3. Step 3: Cross multiply
    11,986.16x = 17,981.82 × 3,666.75
  4. Step 4: Simplify right side
    11,986.16x = 65,934,838.49
  5. Step 5: Solve for x
    x = 65,934,838.49/11,986.16
  6. Step 6: Final answer
    x = 5,500.92

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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.