Home / 18,628.72-25,708.12-10,245.44

Finding the Fourth Proportional to 18,628.72, 25,708.12 and 10,245.44

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Solution

The fourth proportional to 18,628.72, 25,708.12 and 10,245.44 is: 14,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.72 : 25,708.12 = 10,245.44 : x
  2. Step 2: Convert to fraction form
    18,628.72/25,708.12 = 10,245.44/x
  3. Step 3: Cross multiply
    18,628.72x = 25,708.12 × 10,245.44
  4. Step 4: Simplify right side
    18,628.72x = 263,391,000.97
  5. Step 5: Solve for x
    x = 263,391,000.97/18,628.72
  6. Step 6: Final answer
    x = 14,138.97

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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.