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Finding the Fourth Proportional to 8,503.15, 12,759.04 and 3,822.21

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Solution

The fourth proportional to 8,503.15, 12,759.04 and 3,822.21 is: 5,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.15 : 12,759.04 = 3,822.21 : x
  2. Step 2: Convert to fraction form
    8,503.15/12,759.04 = 3,822.21/x
  3. Step 3: Cross multiply
    8,503.15x = 12,759.04 × 3,822.21
  4. Step 4: Simplify right side
    8,503.15x = 48,767,711.17
  5. Step 5: Solve for x
    x = 48,767,711.17/8,503.15
  6. Step 6: Final answer
    x = 5,735.26

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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.