Home / 18,249.54-25,158.51-12,942.42

Finding the Fourth Proportional to 18,249.54, 25,158.51 and 12,942.42

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Solution

The fourth proportional to 18,249.54, 25,158.51 and 12,942.42 is: 17,842.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.54 : 25,158.51 = 12,942.42 : x
  2. Step 2: Convert to fraction form
    18,249.54/25,158.51 = 12,942.42/x
  3. Step 3: Cross multiply
    18,249.54x = 25,158.51 × 12,942.42
  4. Step 4: Simplify right side
    18,249.54x = 325,612,002.99
  5. Step 5: Solve for x
    x = 325,612,002.99/18,249.54
  6. Step 6: Final answer
    x = 17,842.20

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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.