Home / 18,621.60-27,876.96-12,028.56

Finding the Fourth Proportional to 18,621.60, 27,876.96 and 12,028.56

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Solution

The fourth proportional to 18,621.60, 27,876.96 and 12,028.56 is: 18,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.60 : 27,876.96 = 12,028.56 : x
  2. Step 2: Convert to fraction form
    18,621.60/27,876.96 = 12,028.56/x
  3. Step 3: Cross multiply
    18,621.60x = 27,876.96 × 12,028.56
  4. Step 4: Simplify right side
    18,621.60x = 335,319,685.98
  5. Step 5: Solve for x
    x = 335,319,685.98/18,621.60
  6. Step 6: Final answer
    x = 18,007.03

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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.