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Finding the Fourth Proportional to 8,704.46, 12,035.78 and 8,563.78

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Solution

The fourth proportional to 8,704.46, 12,035.78 and 8,563.78 is: 11,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.46 : 12,035.78 = 8,563.78 : x
  2. Step 2: Convert to fraction form
    8,704.46/12,035.78 = 8,563.78/x
  3. Step 3: Cross multiply
    8,704.46x = 12,035.78 × 8,563.78
  4. Step 4: Simplify right side
    8,704.46x = 103,071,772.05
  5. Step 5: Solve for x
    x = 103,071,772.05/8,704.46
  6. Step 6: Final answer
    x = 11,841.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.