Home / 11,929.66-17,894.49-3,165.26

Finding the Fourth Proportional to 11,929.66, 17,894.49 and 3,165.26

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Solution

The fourth proportional to 11,929.66, 17,894.49 and 3,165.26 is: 4,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.66 : 17,894.49 = 3,165.26 : x
  2. Step 2: Convert to fraction form
    11,929.66/17,894.49 = 3,165.26/x
  3. Step 3: Cross multiply
    11,929.66x = 17,894.49 × 3,165.26
  4. Step 4: Simplify right side
    11,929.66x = 56,640,713.42
  5. Step 5: Solve for x
    x = 56,640,713.42/11,929.66
  6. Step 6: Final answer
    x = 4,747.89

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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.