Home / 18,789.72-28,198.86-6,954.69

Finding the Fourth Proportional to 18,789.72, 28,198.86 and 6,954.69

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Solution

The fourth proportional to 18,789.72, 28,198.86 and 6,954.69 is: 10,437.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.72 : 28,198.86 = 6,954.69 : x
  2. Step 2: Convert to fraction form
    18,789.72/28,198.86 = 6,954.69/x
  3. Step 3: Cross multiply
    18,789.72x = 28,198.86 × 6,954.69
  4. Step 4: Simplify right side
    18,789.72x = 196,114,329.65
  5. Step 5: Solve for x
    x = 196,114,329.65/18,789.72
  6. Step 6: Final answer
    x = 10,437.32

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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.