Home / 11,934.90-16,470.18-6,629.58

Finding the Fourth Proportional to 11,934.90, 16,470.18 and 6,629.58

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Solution

The fourth proportional to 11,934.90, 16,470.18 and 6,629.58 is: 9,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,934.90 : 16,470.18 = 6,629.58 : x
  2. Step 2: Convert to fraction form
    11,934.90/16,470.18 = 6,629.58/x
  3. Step 3: Cross multiply
    11,934.90x = 16,470.18 × 6,629.58
  4. Step 4: Simplify right side
    11,934.90x = 109,190,375.92
  5. Step 5: Solve for x
    x = 109,190,375.92/11,934.90
  6. Step 6: Final answer
    x = 9,148.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.