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Finding the Fourth Proportional to 12,611.22, 17,410.74 and 8,737.80

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Solution

The fourth proportional to 12,611.22, 17,410.74 and 8,737.80 is: 12,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.22 : 17,410.74 = 8,737.80 : x
  2. Step 2: Convert to fraction form
    12,611.22/17,410.74 = 8,737.80/x
  3. Step 3: Cross multiply
    12,611.22x = 17,410.74 × 8,737.80
  4. Step 4: Simplify right side
    12,611.22x = 152,131,563.97
  5. Step 5: Solve for x
    x = 152,131,563.97/12,611.22
  6. Step 6: Final answer
    x = 12,063.19

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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.