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Finding the Fourth Proportional to 18,147.28, 27,226.98 and 7,054.34

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Solution

The fourth proportional to 18,147.28, 27,226.98 and 7,054.34 is: 10,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.28 : 27,226.98 = 7,054.34 : x
  2. Step 2: Convert to fraction form
    18,147.28/27,226.98 = 7,054.34/x
  3. Step 3: Cross multiply
    18,147.28x = 27,226.98 × 7,054.34
  4. Step 4: Simplify right side
    18,147.28x = 192,068,374.09
  5. Step 5: Solve for x
    x = 192,068,374.09/18,147.28
  6. Step 6: Final answer
    x = 10,583.87

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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.