Home / 18,945.62-28,418.98-5,797.70

Finding the Fourth Proportional to 18,945.62, 28,418.98 and 5,797.70

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Solution

The fourth proportional to 18,945.62, 28,418.98 and 5,797.70 is: 8,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.62 : 28,418.98 = 5,797.70 : x
  2. Step 2: Convert to fraction form
    18,945.62/28,418.98 = 5,797.70/x
  3. Step 3: Cross multiply
    18,945.62x = 28,418.98 × 5,797.70
  4. Step 4: Simplify right side
    18,945.62x = 164,764,720.35
  5. Step 5: Solve for x
    x = 164,764,720.35/18,945.62
  6. Step 6: Final answer
    x = 8,696.72

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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.