Home / 8,269.13-12,402.70-2,721.09

Finding the Fourth Proportional to 8,269.13, 12,402.70 and 2,721.09

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Solution

The fourth proportional to 8,269.13, 12,402.70 and 2,721.09 is: 4,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.13 : 12,402.70 = 2,721.09 : x
  2. Step 2: Convert to fraction form
    8,269.13/12,402.70 = 2,721.09/x
  3. Step 3: Cross multiply
    8,269.13x = 12,402.70 × 2,721.09
  4. Step 4: Simplify right side
    8,269.13x = 33,748,912.85
  5. Step 5: Solve for x
    x = 33,748,912.85/8,269.13
  6. Step 6: Final answer
    x = 4,081.32

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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.