Home / 8,721.23-13,084.04-3,791.75

Finding the Fourth Proportional to 8,721.23, 13,084.04 and 3,791.75

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Solution

The fourth proportional to 8,721.23, 13,084.04 and 3,791.75 is: 5,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.23 : 13,084.04 = 3,791.75 : x
  2. Step 2: Convert to fraction form
    8,721.23/13,084.04 = 3,791.75/x
  3. Step 3: Cross multiply
    8,721.23x = 13,084.04 × 3,791.75
  4. Step 4: Simplify right side
    8,721.23x = 49,611,352.73
  5. Step 5: Solve for x
    x = 49,611,352.73/8,721.23
  6. Step 6: Final answer
    x = 5,688.58

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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.