Home / 18,255.06-27,383.10-12,054.78

Finding the Fourth Proportional to 18,255.06, 27,383.10 and 12,054.78

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Solution

The fourth proportional to 18,255.06, 27,383.10 and 12,054.78 is: 18,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.06 : 27,383.10 = 12,054.78 : x
  2. Step 2: Convert to fraction form
    18,255.06/27,383.10 = 12,054.78/x
  3. Step 3: Cross multiply
    18,255.06x = 27,383.10 × 12,054.78
  4. Step 4: Simplify right side
    18,255.06x = 330,097,246.22
  5. Step 5: Solve for x
    x = 330,097,246.22/18,255.06
  6. Step 6: Final answer
    x = 18,082.51

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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.