Home / 11,957.78-17,920.26-6,102.08

Finding the Fourth Proportional to 11,957.78, 17,920.26 and 6,102.08

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Solution

The fourth proportional to 11,957.78, 17,920.26 and 6,102.08 is: 9,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.78 : 17,920.26 = 6,102.08 : x
  2. Step 2: Convert to fraction form
    11,957.78/17,920.26 = 6,102.08/x
  3. Step 3: Cross multiply
    11,957.78x = 17,920.26 × 6,102.08
  4. Step 4: Simplify right side
    11,957.78x = 109,350,860.14
  5. Step 5: Solve for x
    x = 109,350,860.14/11,957.78
  6. Step 6: Final answer
    x = 9,144.75

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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.