Home / 18,309.38-27,486.52-12,074.60

Finding the Fourth Proportional to 18,309.38, 27,486.52 and 12,074.60

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Solution

The fourth proportional to 18,309.38, 27,486.52 and 12,074.60 is: 18,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.38 : 27,486.52 = 12,074.60 : x
  2. Step 2: Convert to fraction form
    18,309.38/27,486.52 = 12,074.60/x
  3. Step 3: Cross multiply
    18,309.38x = 27,486.52 × 12,074.60
  4. Step 4: Simplify right side
    18,309.38x = 331,888,734.39
  5. Step 5: Solve for x
    x = 331,888,734.39/18,309.38
  6. Step 6: Final answer
    x = 18,126.71

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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.