Home / 11,743.79-17,616-2,979.39

Finding the Fourth Proportional to 11,743.79, 17,616 and 2,979.39

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Solution

The fourth proportional to 11,743.79, 17,616 and 2,979.39 is: 4,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,743.79 : 17,616 = 2,979.39 : x
  2. Step 2: Convert to fraction form
    11,743.79/17,616 = 2,979.39/x
  3. Step 3: Cross multiply
    11,743.79x = 17,616 × 2,979.39
  4. Step 4: Simplify right side
    11,743.79x = 52,484,934.24
  5. Step 5: Solve for x
    x = 52,484,934.24/11,743.79
  6. Step 6: Final answer
    x = 4,469.16

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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.