Home / 19,180.62-28,761.17-8,783.46

Finding the Fourth Proportional to 19,180.62, 28,761.17 and 8,783.46

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Solution

The fourth proportional to 19,180.62, 28,761.17 and 8,783.46 is: 13,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.62 : 28,761.17 = 8,783.46 : x
  2. Step 2: Convert to fraction form
    19,180.62/28,761.17 = 8,783.46/x
  3. Step 3: Cross multiply
    19,180.62x = 28,761.17 × 8,783.46
  4. Step 4: Simplify right side
    19,180.62x = 252,622,542.33
  5. Step 5: Solve for x
    x = 252,622,542.33/19,180.62
  6. Step 6: Final answer
    x = 13,170.72

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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.