Home / 18,078.50-24,950.82-10,908.79

Finding the Fourth Proportional to 18,078.50, 24,950.82 and 10,908.79

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Solution

The fourth proportional to 18,078.50, 24,950.82 and 10,908.79 is: 15,055.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.50 : 24,950.82 = 10,908.79 : x
  2. Step 2: Convert to fraction form
    18,078.50/24,950.82 = 10,908.79/x
  3. Step 3: Cross multiply
    18,078.50x = 24,950.82 × 10,908.79
  4. Step 4: Simplify right side
    18,078.50x = 272,183,234.24
  5. Step 5: Solve for x
    x = 272,183,234.24/18,078.50
  6. Step 6: Final answer
    x = 15,055.63

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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.