Home / 11,712.26-17,564.16-3,919.26

Finding the Fourth Proportional to 11,712.26, 17,564.16 and 3,919.26

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Solution

The fourth proportional to 11,712.26, 17,564.16 and 3,919.26 is: 5,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.26 : 17,564.16 = 3,919.26 : x
  2. Step 2: Convert to fraction form
    11,712.26/17,564.16 = 3,919.26/x
  3. Step 3: Cross multiply
    11,712.26x = 17,564.16 × 3,919.26
  4. Step 4: Simplify right side
    11,712.26x = 68,838,509.72
  5. Step 5: Solve for x
    x = 68,838,509.72/11,712.26
  6. Step 6: Final answer
    x = 5,877.47

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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.