Home / 11,382.60-17,076.90-3,987.06

Finding the Fourth Proportional to 11,382.60, 17,076.90 and 3,987.06

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Solution

The fourth proportional to 11,382.60, 17,076.90 and 3,987.06 is: 5,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.60 : 17,076.90 = 3,987.06 : x
  2. Step 2: Convert to fraction form
    11,382.60/17,076.90 = 3,987.06/x
  3. Step 3: Cross multiply
    11,382.60x = 17,076.90 × 3,987.06
  4. Step 4: Simplify right side
    11,382.60x = 68,086,624.91
  5. Step 5: Solve for x
    x = 68,086,624.91/11,382.60
  6. Step 6: Final answer
    x = 5,981.64

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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.