Home / 12,086.26-18,129.60-3,766.20

Finding the Fourth Proportional to 12,086.26, 18,129.60 and 3,766.20

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Solution

The fourth proportional to 12,086.26, 18,129.60 and 3,766.20 is: 5,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.26 : 18,129.60 = 3,766.20 : x
  2. Step 2: Convert to fraction form
    12,086.26/18,129.60 = 3,766.20/x
  3. Step 3: Cross multiply
    12,086.26x = 18,129.60 × 3,766.20
  4. Step 4: Simplify right side
    12,086.26x = 68,279,699.52
  5. Step 5: Solve for x
    x = 68,279,699.52/12,086.26
  6. Step 6: Final answer
    x = 5,649.37

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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.