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Finding the Fourth Proportional to 8,469.06, 12,704.20 and 2,922.32

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Solution

The fourth proportional to 8,469.06, 12,704.20 and 2,922.32 is: 4,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.06 : 12,704.20 = 2,922.32 : x
  2. Step 2: Convert to fraction form
    8,469.06/12,704.20 = 2,922.32/x
  3. Step 3: Cross multiply
    8,469.06x = 12,704.20 × 2,922.32
  4. Step 4: Simplify right side
    8,469.06x = 37,125,737.74
  5. Step 5: Solve for x
    x = 37,125,737.74/8,469.06
  6. Step 6: Final answer
    x = 4,383.69

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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.