Home / 11,304.10-16,992.60-8,039.80

Finding the Fourth Proportional to 11,304.10, 16,992.60 and 8,039.80

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Solution

The fourth proportional to 11,304.10, 16,992.60 and 8,039.80 is: 12,085.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,304.10 : 16,992.60 = 8,039.80 : x
  2. Step 2: Convert to fraction form
    11,304.10/16,992.60 = 8,039.80/x
  3. Step 3: Cross multiply
    11,304.10x = 16,992.60 × 8,039.80
  4. Step 4: Simplify right side
    11,304.10x = 136,617,105.48
  5. Step 5: Solve for x
    x = 136,617,105.48/11,304.10
  6. Step 6: Final answer
    x = 12,085.62

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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.