Home / 8,654.28-12,982.66-2,729.15

Finding the Fourth Proportional to 8,654.28, 12,982.66 and 2,729.15

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Solution

The fourth proportional to 8,654.28, 12,982.66 and 2,729.15 is: 4,094.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.28 : 12,982.66 = 2,729.15 : x
  2. Step 2: Convert to fraction form
    8,654.28/12,982.66 = 2,729.15/x
  3. Step 3: Cross multiply
    8,654.28x = 12,982.66 × 2,729.15
  4. Step 4: Simplify right side
    8,654.28x = 35,431,618.84
  5. Step 5: Solve for x
    x = 35,431,618.84/8,654.28
  6. Step 6: Final answer
    x = 4,094.12

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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.