Home / 8,321.18-12,481.73-2,477.80

Finding the Fourth Proportional to 8,321.18, 12,481.73 and 2,477.80

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Solution

The fourth proportional to 8,321.18, 12,481.73 and 2,477.80 is: 3,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.18 : 12,481.73 = 2,477.80 : x
  2. Step 2: Convert to fraction form
    8,321.18/12,481.73 = 2,477.80/x
  3. Step 3: Cross multiply
    8,321.18x = 12,481.73 × 2,477.80
  4. Step 4: Simplify right side
    8,321.18x = 30,927,230.59
  5. Step 5: Solve for x
    x = 30,927,230.59/8,321.18
  6. Step 6: Final answer
    x = 3,716.69

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1.5x scale

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.