Home / 8,135.82-12,203.76-2,869.62

Finding the Fourth Proportional to 8,135.82, 12,203.76 and 2,869.62

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Solution

The fourth proportional to 8,135.82, 12,203.76 and 2,869.62 is: 4,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.82 : 12,203.76 = 2,869.62 : x
  2. Step 2: Convert to fraction form
    8,135.82/12,203.76 = 2,869.62/x
  3. Step 3: Cross multiply
    8,135.82x = 12,203.76 × 2,869.62
  4. Step 4: Simplify right side
    8,135.82x = 35,020,153.77
  5. Step 5: Solve for x
    x = 35,020,153.77/8,135.82
  6. Step 6: Final answer
    x = 4,304.44

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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.