Home / 10,228.21-15,356.68-5,234.15

Finding the Fourth Proportional to 10,228.21, 15,356.68 and 5,234.15

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Solution

The fourth proportional to 10,228.21, 15,356.68 and 5,234.15 is: 7,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.21 : 15,356.68 = 5,234.15 : x
  2. Step 2: Convert to fraction form
    10,228.21/15,356.68 = 5,234.15/x
  3. Step 3: Cross multiply
    10,228.21x = 15,356.68 × 5,234.15
  4. Step 4: Simplify right side
    10,228.21x = 80,379,191.93
  5. Step 5: Solve for x
    x = 80,379,191.93/10,228.21
  6. Step 6: Final answer
    x = 7,858.58

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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.