Home / 11,802.44-17,704.74-3,905

Finding the Fourth Proportional to 11,802.44, 17,704.74 and 3,905

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Solution

The fourth proportional to 11,802.44, 17,704.74 and 3,905 is: 5,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,802.44 : 17,704.74 = 3,905 : x
  2. Step 2: Convert to fraction form
    11,802.44/17,704.74 = 3,905/x
  3. Step 3: Cross multiply
    11,802.44x = 17,704.74 × 3,905
  4. Step 4: Simplify right side
    11,802.44x = 69,137,009.70
  5. Step 5: Solve for x
    x = 69,137,009.70/11,802.44
  6. Step 6: Final answer
    x = 5,857.86

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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.