Home / 18,719.64-28,067.84-6,236.43

Finding the Fourth Proportional to 18,719.64, 28,067.84 and 6,236.43

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Solution

The fourth proportional to 18,719.64, 28,067.84 and 6,236.43 is: 9,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.64 : 28,067.84 = 6,236.43 : x
  2. Step 2: Convert to fraction form
    18,719.64/28,067.84 = 6,236.43/x
  3. Step 3: Cross multiply
    18,719.64x = 28,067.84 × 6,236.43
  4. Step 4: Simplify right side
    18,719.64x = 175,043,088.23
  5. Step 5: Solve for x
    x = 175,043,088.23/18,719.64
  6. Step 6: Final answer
    x = 9,350.77

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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.