Home / 7,780.26-11,673.14-3,398.06

Finding the Fourth Proportional to 7,780.26, 11,673.14 and 3,398.06

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Solution

The fourth proportional to 7,780.26, 11,673.14 and 3,398.06 is: 5,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.26 : 11,673.14 = 3,398.06 : x
  2. Step 2: Convert to fraction form
    7,780.26/11,673.14 = 3,398.06/x
  3. Step 3: Cross multiply
    7,780.26x = 11,673.14 × 3,398.06
  4. Step 4: Simplify right side
    7,780.26x = 39,666,042.30
  5. Step 5: Solve for x
    x = 39,666,042.30/7,780.26
  6. Step 6: Final answer
    x = 5,098.29

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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.