Home / 11,515.20-17,264.49-4,489.26

Finding the Fourth Proportional to 11,515.20, 17,264.49 and 4,489.26

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Solution

The fourth proportional to 11,515.20, 17,264.49 and 4,489.26 is: 6,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.20 : 17,264.49 = 4,489.26 : x
  2. Step 2: Convert to fraction form
    11,515.20/17,264.49 = 4,489.26/x
  3. Step 3: Cross multiply
    11,515.20x = 17,264.49 × 4,489.26
  4. Step 4: Simplify right side
    11,515.20x = 77,504,784.38
  5. Step 5: Solve for x
    x = 77,504,784.38/11,515.20
  6. Step 6: Final answer
    x = 6,730.65

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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.