Home / 12,092.45-18,138.78-3,659.01

Finding the Fourth Proportional to 12,092.45, 18,138.78 and 3,659.01

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Solution

The fourth proportional to 12,092.45, 18,138.78 and 3,659.01 is: 5,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,092.45 : 18,138.78 = 3,659.01 : x
  2. Step 2: Convert to fraction form
    12,092.45/18,138.78 = 3,659.01/x
  3. Step 3: Cross multiply
    12,092.45x = 18,138.78 × 3,659.01
  4. Step 4: Simplify right side
    12,092.45x = 66,369,977.41
  5. Step 5: Solve for x
    x = 66,369,977.41/12,092.45
  6. Step 6: Final answer
    x = 5,488.55

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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.