Home / 18,108.82-27,151.68-10,715.54

Finding the Fourth Proportional to 18,108.82, 27,151.68 and 10,715.54

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Solution

The fourth proportional to 18,108.82, 27,151.68 and 10,715.54 is: 16,066.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.82 : 27,151.68 = 10,715.54 : x
  2. Step 2: Convert to fraction form
    18,108.82/27,151.68 = 10,715.54/x
  3. Step 3: Cross multiply
    18,108.82x = 27,151.68 × 10,715.54
  4. Step 4: Simplify right side
    18,108.82x = 290,944,913.11
  5. Step 5: Solve for x
    x = 290,944,913.11/18,108.82
  6. Step 6: Final answer
    x = 16,066.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.