Home / 8,428.05-12,631.14-5,650.56

Finding the Fourth Proportional to 8,428.05, 12,631.14 and 5,650.56

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Solution

The fourth proportional to 8,428.05, 12,631.14 and 5,650.56 is: 8,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.05 : 12,631.14 = 5,650.56 : x
  2. Step 2: Convert to fraction form
    8,428.05/12,631.14 = 5,650.56/x
  3. Step 3: Cross multiply
    8,428.05x = 12,631.14 × 5,650.56
  4. Step 4: Simplify right side
    8,428.05x = 71,373,014.44
  5. Step 5: Solve for x
    x = 71,373,014.44/8,428.05
  6. Step 6: Final answer
    x = 8,468.51

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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.