Home / 11,115.67-16,665.30-5,265.43

Finding the Fourth Proportional to 11,115.67, 16,665.30 and 5,265.43

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Solution

The fourth proportional to 11,115.67, 16,665.30 and 5,265.43 is: 7,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.67 : 16,665.30 = 5,265.43 : x
  2. Step 2: Convert to fraction form
    11,115.67/16,665.30 = 5,265.43/x
  3. Step 3: Cross multiply
    11,115.67x = 16,665.30 × 5,265.43
  4. Step 4: Simplify right side
    11,115.67x = 87,749,970.58
  5. Step 5: Solve for x
    x = 87,749,970.58/11,115.67
  6. Step 6: Final answer
    x = 7,894.26

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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.