Home / 19,285.97-28,928.64-6,138.15

Finding the Fourth Proportional to 19,285.97, 28,928.64 and 6,138.15

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Solution

The fourth proportional to 19,285.97, 28,928.64 and 6,138.15 is: 9,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.97 : 28,928.64 = 6,138.15 : x
  2. Step 2: Convert to fraction form
    19,285.97/28,928.64 = 6,138.15/x
  3. Step 3: Cross multiply
    19,285.97x = 28,928.64 × 6,138.15
  4. Step 4: Simplify right side
    19,285.97x = 177,568,246.15
  5. Step 5: Solve for x
    x = 177,568,246.15/19,285.97
  6. Step 6: Final answer
    x = 9,207.12

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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.