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Finding the Fourth Proportional to 18,397.56, 27,597.22 and 5,251.84

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Solution

The fourth proportional to 18,397.56, 27,597.22 and 5,251.84 is: 7,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.56 : 27,597.22 = 5,251.84 : x
  2. Step 2: Convert to fraction form
    18,397.56/27,597.22 = 5,251.84/x
  3. Step 3: Cross multiply
    18,397.56x = 27,597.22 × 5,251.84
  4. Step 4: Simplify right side
    18,397.56x = 144,936,183.88
  5. Step 5: Solve for x
    x = 144,936,183.88/18,397.56
  6. Step 6: Final answer
    x = 7,878.01

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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.