Home / 11,678.18-17,517.47-3,357.86

Finding the Fourth Proportional to 11,678.18, 17,517.47 and 3,357.86

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Solution

The fourth proportional to 11,678.18, 17,517.47 and 3,357.86 is: 5,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.18 : 17,517.47 = 3,357.86 : x
  2. Step 2: Convert to fraction form
    11,678.18/17,517.47 = 3,357.86/x
  3. Step 3: Cross multiply
    11,678.18x = 17,517.47 × 3,357.86
  4. Step 4: Simplify right side
    11,678.18x = 58,821,107.44
  5. Step 5: Solve for x
    x = 58,821,107.44/11,678.18
  6. Step 6: Final answer
    x = 5,036.84

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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.