Home / 8,718.65-13,083.54-3,171.47

Finding the Fourth Proportional to 8,718.65, 13,083.54 and 3,171.47

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Solution

The fourth proportional to 8,718.65, 13,083.54 and 3,171.47 is: 4,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.65 : 13,083.54 = 3,171.47 : x
  2. Step 2: Convert to fraction form
    8,718.65/13,083.54 = 3,171.47/x
  3. Step 3: Cross multiply
    8,718.65x = 13,083.54 × 3,171.47
  4. Step 4: Simplify right side
    8,718.65x = 41,493,989.19
  5. Step 5: Solve for x
    x = 41,493,989.19/8,718.65
  6. Step 6: Final answer
    x = 4,759.22

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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.