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Finding the Fourth Proportional to 8,222.88, 12,361.05 and 6,597.21

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Solution

The fourth proportional to 8,222.88, 12,361.05 and 6,597.21 is: 9,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.88 : 12,361.05 = 6,597.21 : x
  2. Step 2: Convert to fraction form
    8,222.88/12,361.05 = 6,597.21/x
  3. Step 3: Cross multiply
    8,222.88x = 12,361.05 × 6,597.21
  4. Step 4: Simplify right side
    8,222.88x = 81,548,442.67
  5. Step 5: Solve for x
    x = 81,548,442.67/8,222.88
  6. Step 6: Final answer
    x = 9,917.26

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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.