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Finding the Fourth Proportional to 18,452.00, 27,680.74 and 9,687.60

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Solution

The fourth proportional to 18,452.00, 27,680.74 and 9,687.60 is: 14,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452.00 : 27,680.74 = 9,687.60 : x
  2. Step 2: Convert to fraction form
    18,452.00/27,680.74 = 9,687.60/x
  3. Step 3: Cross multiply
    18,452.00x = 27,680.74 × 9,687.60
  4. Step 4: Simplify right side
    18,452.00x = 268,159,912.61
  5. Step 5: Solve for x
    x = 268,159,912.61/18,452.00
  6. Step 6: Final answer
    x = 14,532.84

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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.