Home / 8,721.10-13,083.22-3,182.22

Finding the Fourth Proportional to 8,721.10, 13,083.22 and 3,182.22

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Solution

The fourth proportional to 8,721.10, 13,083.22 and 3,182.22 is: 4,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.10 : 13,083.22 = 3,182.22 : x
  2. Step 2: Convert to fraction form
    8,721.10/13,083.22 = 3,182.22/x
  3. Step 3: Cross multiply
    8,721.10x = 13,083.22 × 3,182.22
  4. Step 4: Simplify right side
    8,721.10x = 41,633,684.35
  5. Step 5: Solve for x
    x = 41,633,684.35/8,721.10
  6. Step 6: Final answer
    x = 4,773.90

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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.