Home / 11,343.33-16,979.09-6,398.28

Finding the Fourth Proportional to 11,343.33, 16,979.09 and 6,398.28

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Solution

The fourth proportional to 11,343.33, 16,979.09 and 6,398.28 is: 9,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.33 : 16,979.09 = 6,398.28 : x
  2. Step 2: Convert to fraction form
    11,343.33/16,979.09 = 6,398.28/x
  3. Step 3: Cross multiply
    11,343.33x = 16,979.09 × 6,398.28
  4. Step 4: Simplify right side
    11,343.33x = 108,636,939.97
  5. Step 5: Solve for x
    x = 108,636,939.97/11,343.33
  6. Step 6: Final answer
    x = 9,577.16

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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.