Home / 18,111.78-24,994.32-11,401.85

Finding the Fourth Proportional to 18,111.78, 24,994.32 and 11,401.85

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Solution

The fourth proportional to 18,111.78, 24,994.32 and 11,401.85 is: 15,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.78 : 24,994.32 = 11,401.85 : x
  2. Step 2: Convert to fraction form
    18,111.78/24,994.32 = 11,401.85/x
  3. Step 3: Cross multiply
    18,111.78x = 24,994.32 × 11,401.85
  4. Step 4: Simplify right side
    18,111.78x = 284,981,362.52
  5. Step 5: Solve for x
    x = 284,981,362.52/18,111.78
  6. Step 6: Final answer
    x = 15,734.59

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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.