Home / 19,201.75-28,813.97-8,107.72

Finding the Fourth Proportional to 19,201.75, 28,813.97 and 8,107.72

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Solution

The fourth proportional to 19,201.75, 28,813.97 and 8,107.72 is: 12,166.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.75 : 28,813.97 = 8,107.72 : x
  2. Step 2: Convert to fraction form
    19,201.75/28,813.97 = 8,107.72/x
  3. Step 3: Cross multiply
    19,201.75x = 28,813.97 × 8,107.72
  4. Step 4: Simplify right side
    19,201.75x = 233,615,560.31
  5. Step 5: Solve for x
    x = 233,615,560.31/19,201.75
  6. Step 6: Final answer
    x = 12,166.37

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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.