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Finding the Fourth Proportional to 8,355.78, 12,522.84 and 6,259.26

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Solution

The fourth proportional to 8,355.78, 12,522.84 and 6,259.26 is: 9,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.78 : 12,522.84 = 6,259.26 : x
  2. Step 2: Convert to fraction form
    8,355.78/12,522.84 = 6,259.26/x
  3. Step 3: Cross multiply
    8,355.78x = 12,522.84 × 6,259.26
  4. Step 4: Simplify right side
    8,355.78x = 78,383,711.50
  5. Step 5: Solve for x
    x = 78,383,711.50/8,355.78
  6. Step 6: Final answer
    x = 9,380.78

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1.5x scale

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.