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Finding the Fourth Proportional to 18,171.60, 27,237.15 and 7,074.60

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Solution

The fourth proportional to 18,171.60, 27,237.15 and 7,074.60 is: 10,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.60 : 27,237.15 = 7,074.60 : x
  2. Step 2: Convert to fraction form
    18,171.60/27,237.15 = 7,074.60/x
  3. Step 3: Cross multiply
    18,171.60x = 27,237.15 × 7,074.60
  4. Step 4: Simplify right side
    18,171.60x = 192,691,941.39
  5. Step 5: Solve for x
    x = 192,691,941.39/18,171.60
  6. Step 6: Final answer
    x = 10,604.02

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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.