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Finding the Fourth Proportional to 18,096.20, 27,140.70 and 8,736.20

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Solution

The fourth proportional to 18,096.20, 27,140.70 and 8,736.20 is: 13,102.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,096.20 : 27,140.70 = 8,736.20 : x
  2. Step 2: Convert to fraction form
    18,096.20/27,140.70 = 8,736.20/x
  3. Step 3: Cross multiply
    18,096.20x = 27,140.70 × 8,736.20
  4. Step 4: Simplify right side
    18,096.20x = 237,106,583.34
  5. Step 5: Solve for x
    x = 237,106,583.34/18,096.20
  6. Step 6: Final answer
    x = 13,102.56

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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.