Home / 8,218.26-12,328.56-2,669.82

Finding the Fourth Proportional to 8,218.26, 12,328.56 and 2,669.82

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Solution

The fourth proportional to 8,218.26, 12,328.56 and 2,669.82 is: 4,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.26 : 12,328.56 = 2,669.82 : x
  2. Step 2: Convert to fraction form
    8,218.26/12,328.56 = 2,669.82/x
  3. Step 3: Cross multiply
    8,218.26x = 12,328.56 × 2,669.82
  4. Step 4: Simplify right side
    8,218.26x = 32,915,036.06
  5. Step 5: Solve for x
    x = 32,915,036.06/8,218.26
  6. Step 6: Final answer
    x = 4,005.11

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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.