Home / 8,268.40-12,405.30-2,721.52

Finding the Fourth Proportional to 8,268.40, 12,405.30 and 2,721.52

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Solution

The fourth proportional to 8,268.40, 12,405.30 and 2,721.52 is: 4,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.40 : 12,405.30 = 2,721.52 : x
  2. Step 2: Convert to fraction form
    8,268.40/12,405.30 = 2,721.52/x
  3. Step 3: Cross multiply
    8,268.40x = 12,405.30 × 2,721.52
  4. Step 4: Simplify right side
    8,268.40x = 33,761,272.06
  5. Step 5: Solve for x
    x = 33,761,272.06/8,268.40
  6. Step 6: Final answer
    x = 4,083.17

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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.