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Finding the Fourth Proportional to 15,086.60, 22,620.81 and 6,765.11

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Solution

The fourth proportional to 15,086.60, 22,620.81 and 6,765.11 is: 10,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,086.60 : 22,620.81 = 6,765.11 : x
  2. Step 2: Convert to fraction form
    15,086.60/22,620.81 = 6,765.11/x
  3. Step 3: Cross multiply
    15,086.60x = 22,620.81 × 6,765.11
  4. Step 4: Simplify right side
    15,086.60x = 153,032,267.94
  5. Step 5: Solve for x
    x = 153,032,267.94/15,086.60
  6. Step 6: Final answer
    x = 10,143.59

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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.