Home / 19,286.97-28,930.14-6,139.15

Finding the Fourth Proportional to 19,286.97, 28,930.14 and 6,139.15

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Solution

The fourth proportional to 19,286.97, 28,930.14 and 6,139.15 is: 9,208.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.97 : 28,930.14 = 6,139.15 : x
  2. Step 2: Convert to fraction form
    19,286.97/28,930.14 = 6,139.15/x
  3. Step 3: Cross multiply
    19,286.97x = 28,930.14 × 6,139.15
  4. Step 4: Simplify right side
    19,286.97x = 177,606,468.98
  5. Step 5: Solve for x
    x = 177,606,468.98/19,286.97
  6. Step 6: Final answer
    x = 9,208.62

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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.