Home / 18,605.12-25,674.88-10,221.44

Finding the Fourth Proportional to 18,605.12, 25,674.88 and 10,221.44

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Solution

The fourth proportional to 18,605.12, 25,674.88 and 10,221.44 is: 14,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.12 : 25,674.88 = 10,221.44 : x
  2. Step 2: Convert to fraction form
    18,605.12/25,674.88 = 10,221.44/x
  3. Step 3: Cross multiply
    18,605.12x = 25,674.88 × 10,221.44
  4. Step 4: Simplify right side
    18,605.12x = 262,434,245.43
  5. Step 5: Solve for x
    x = 262,434,245.43/18,605.12
  6. Step 6: Final answer
    x = 14,105.49

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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.