Home / 8,721.64-13,083.23-2,799.13

Finding the Fourth Proportional to 8,721.64, 13,083.23 and 2,799.13

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Solution

The fourth proportional to 8,721.64, 13,083.23 and 2,799.13 is: 4,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.64 : 13,083.23 = 2,799.13 : x
  2. Step 2: Convert to fraction form
    8,721.64/13,083.23 = 2,799.13/x
  3. Step 3: Cross multiply
    8,721.64x = 13,083.23 × 2,799.13
  4. Step 4: Simplify right side
    8,721.64x = 36,621,661.59
  5. Step 5: Solve for x
    x = 36,621,661.59/8,721.64
  6. Step 6: Final answer
    x = 4,198.94

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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.