Home / 11,986.48-17,979.72-4,197.52

Finding the Fourth Proportional to 11,986.48, 17,979.72 and 4,197.52

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Solution

The fourth proportional to 11,986.48, 17,979.72 and 4,197.52 is: 6,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.48 : 17,979.72 = 4,197.52 : x
  2. Step 2: Convert to fraction form
    11,986.48/17,979.72 = 4,197.52/x
  3. Step 3: Cross multiply
    11,986.48x = 17,979.72 × 4,197.52
  4. Step 4: Simplify right side
    11,986.48x = 75,470,234.29
  5. Step 5: Solve for x
    x = 75,470,234.29/11,986.48
  6. Step 6: Final answer
    x = 6,296.28

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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.