Home / 8,650.05-12,975.28-3,103.28

Finding the Fourth Proportional to 8,650.05, 12,975.28 and 3,103.28

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Solution

The fourth proportional to 8,650.05, 12,975.28 and 3,103.28 is: 4,654.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.05 : 12,975.28 = 3,103.28 : x
  2. Step 2: Convert to fraction form
    8,650.05/12,975.28 = 3,103.28/x
  3. Step 3: Cross multiply
    8,650.05x = 12,975.28 × 3,103.28
  4. Step 4: Simplify right side
    8,650.05x = 40,265,926.92
  5. Step 5: Solve for x
    x = 40,265,926.92/8,650.05
  6. Step 6: Final answer
    x = 4,654.99

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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.