Home / 12,620.98-18,919.79-4,823.54

Finding the Fourth Proportional to 12,620.98, 18,919.79 and 4,823.54

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Solution

The fourth proportional to 12,620.98, 18,919.79 and 4,823.54 is: 7,230.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.98 : 18,919.79 = 4,823.54 : x
  2. Step 2: Convert to fraction form
    12,620.98/18,919.79 = 4,823.54/x
  3. Step 3: Cross multiply
    12,620.98x = 18,919.79 × 4,823.54
  4. Step 4: Simplify right side
    12,620.98x = 91,260,363.86
  5. Step 5: Solve for x
    x = 91,260,363.86/12,620.98
  6. Step 6: Final answer
    x = 7,230.85

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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.