Home / 18,245.13-25,181.94-10,287.51

Finding the Fourth Proportional to 18,245.13, 25,181.94 and 10,287.51

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Solution

The fourth proportional to 18,245.13, 25,181.94 and 10,287.51 is: 14,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.13 : 25,181.94 = 10,287.51 : x
  2. Step 2: Convert to fraction form
    18,245.13/25,181.94 = 10,287.51/x
  3. Step 3: Cross multiply
    18,245.13x = 25,181.94 × 10,287.51
  4. Step 4: Simplify right side
    18,245.13x = 259,059,459.57
  5. Step 5: Solve for x
    x = 259,059,459.57/18,245.13
  6. Step 6: Final answer
    x = 14,198.83

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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.