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Finding the Fourth Proportional to 18,352.68, 27,512.79 and 7,958.76

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Solution

The fourth proportional to 18,352.68, 27,512.79 and 7,958.76 is: 11,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,352.68 : 27,512.79 = 7,958.76 : x
  2. Step 2: Convert to fraction form
    18,352.68/27,512.79 = 7,958.76/x
  3. Step 3: Cross multiply
    18,352.68x = 27,512.79 × 7,958.76
  4. Step 4: Simplify right side
    18,352.68x = 218,967,692.54
  5. Step 5: Solve for x
    x = 218,967,692.54/18,352.68
  6. Step 6: Final answer
    x = 11,931.10

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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.