Home / 18,517.59-27,780.94-5,369.77

Finding the Fourth Proportional to 18,517.59, 27,780.94 and 5,369.77

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Solution

The fourth proportional to 18,517.59, 27,780.94 and 5,369.77 is: 8,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.59 : 27,780.94 = 5,369.77 : x
  2. Step 2: Convert to fraction form
    18,517.59/27,780.94 = 5,369.77/x
  3. Step 3: Cross multiply
    18,517.59x = 27,780.94 × 5,369.77
  4. Step 4: Simplify right side
    18,517.59x = 149,177,299.62
  5. Step 5: Solve for x
    x = 149,177,299.62/18,517.59
  6. Step 6: Final answer
    x = 8,055.98

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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.