Home / 18,086.23-27,129.35-8,845.75

Finding the Fourth Proportional to 18,086.23, 27,129.35 and 8,845.75

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Solution

The fourth proportional to 18,086.23, 27,129.35 and 8,845.75 is: 13,268.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.23 : 27,129.35 = 8,845.75 : x
  2. Step 2: Convert to fraction form
    18,086.23/27,129.35 = 8,845.75/x
  3. Step 3: Cross multiply
    18,086.23x = 27,129.35 × 8,845.75
  4. Step 4: Simplify right side
    18,086.23x = 239,979,447.76
  5. Step 5: Solve for x
    x = 239,979,447.76/18,086.23
  6. Step 6: Final answer
    x = 13,268.63

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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.