Home / 8,127.57-12,191.36-2,861.34

Finding the Fourth Proportional to 8,127.57, 12,191.36 and 2,861.34

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Solution

The fourth proportional to 8,127.57, 12,191.36 and 2,861.34 is: 4,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.57 : 12,191.36 = 2,861.34 : x
  2. Step 2: Convert to fraction form
    8,127.57/12,191.36 = 2,861.34/x
  3. Step 3: Cross multiply
    8,127.57x = 12,191.36 × 2,861.34
  4. Step 4: Simplify right side
    8,127.57x = 34,883,611.72
  5. Step 5: Solve for x
    x = 34,883,611.72/8,127.57
  6. Step 6: Final answer
    x = 4,292.01

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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.