Home / 18,946.88-28,424.42-7,260.09

Finding the Fourth Proportional to 18,946.88, 28,424.42 and 7,260.09

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Solution

The fourth proportional to 18,946.88, 28,424.42 and 7,260.09 is: 10,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.88 : 28,424.42 = 7,260.09 : x
  2. Step 2: Convert to fraction form
    18,946.88/28,424.42 = 7,260.09/x
  3. Step 3: Cross multiply
    18,946.88x = 28,424.42 × 7,260.09
  4. Step 4: Simplify right side
    18,946.88x = 206,363,811.10
  5. Step 5: Solve for x
    x = 206,363,811.10/18,946.88
  6. Step 6: Final answer
    x = 10,891.71

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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.