Home / 12,100.27-18,126.11-5,517.40

Finding the Fourth Proportional to 12,100.27, 18,126.11 and 5,517.40

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Solution

The fourth proportional to 12,100.27, 18,126.11 and 5,517.40 is: 8,265.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.27 : 18,126.11 = 5,517.40 : x
  2. Step 2: Convert to fraction form
    12,100.27/18,126.11 = 5,517.40/x
  3. Step 3: Cross multiply
    12,100.27x = 18,126.11 × 5,517.40
  4. Step 4: Simplify right side
    12,100.27x = 100,008,999.31
  5. Step 5: Solve for x
    x = 100,008,999.31/12,100.27
  6. Step 6: Final answer
    x = 8,265.02

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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.