Home / 11,860.14-17,790-3,540.18

Finding the Fourth Proportional to 11,860.14, 17,790 and 3,540.18

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Solution

The fourth proportional to 11,860.14, 17,790 and 3,540.18 is: 5,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.14 : 17,790 = 3,540.18 : x
  2. Step 2: Convert to fraction form
    11,860.14/17,790 = 3,540.18/x
  3. Step 3: Cross multiply
    11,860.14x = 17,790 × 3,540.18
  4. Step 4: Simplify right side
    11,860.14x = 62,979,802.20
  5. Step 5: Solve for x
    x = 62,979,802.20/11,860.14
  6. Step 6: Final answer
    x = 5,310.21

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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.