Home / 8,166.36-12,243.96-2,971.56

Finding the Fourth Proportional to 8,166.36, 12,243.96 and 2,971.56

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Solution

The fourth proportional to 8,166.36, 12,243.96 and 2,971.56 is: 4,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.36 : 12,243.96 = 2,971.56 : x
  2. Step 2: Convert to fraction form
    8,166.36/12,243.96 = 2,971.56/x
  3. Step 3: Cross multiply
    8,166.36x = 12,243.96 × 2,971.56
  4. Step 4: Simplify right side
    8,166.36x = 36,383,661.78
  5. Step 5: Solve for x
    x = 36,383,661.78/8,166.36
  6. Step 6: Final answer
    x = 4,455.31

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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.