Home / 19,170.14-28,766.34-8,076.11

Finding the Fourth Proportional to 19,170.14, 28,766.34 and 8,076.11

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Solution

The fourth proportional to 19,170.14, 28,766.34 and 8,076.11 is: 12,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.14 : 28,766.34 = 8,076.11 : x
  2. Step 2: Convert to fraction form
    19,170.14/28,766.34 = 8,076.11/x
  3. Step 3: Cross multiply
    19,170.14x = 28,766.34 × 8,076.11
  4. Step 4: Simplify right side
    19,170.14x = 232,319,982.31
  5. Step 5: Solve for x
    x = 232,319,982.31/19,170.14
  6. Step 6: Final answer
    x = 12,118.85

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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.