Home / 18,635.20-25,716.60-10,251.72

Finding the Fourth Proportional to 18,635.20, 25,716.60 and 10,251.72

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Solution

The fourth proportional to 18,635.20, 25,716.60 and 10,251.72 is: 14,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.20 : 25,716.60 = 10,251.72 : x
  2. Step 2: Convert to fraction form
    18,635.20/25,716.60 = 10,251.72/x
  3. Step 3: Cross multiply
    18,635.20x = 25,716.60 × 10,251.72
  4. Step 4: Simplify right side
    18,635.20x = 263,639,382.55
  5. Step 5: Solve for x
    x = 263,639,382.55/18,635.20
  6. Step 6: Final answer
    x = 14,147.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.