Home / 8,147.58-12,217.24-3,981.36

Finding the Fourth Proportional to 8,147.58, 12,217.24 and 3,981.36

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Solution

The fourth proportional to 8,147.58, 12,217.24 and 3,981.36 is: 5,970.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.58 : 12,217.24 = 3,981.36 : x
  2. Step 2: Convert to fraction form
    8,147.58/12,217.24 = 3,981.36/x
  3. Step 3: Cross multiply
    8,147.58x = 12,217.24 × 3,981.36
  4. Step 4: Simplify right side
    8,147.58x = 48,641,230.65
  5. Step 5: Solve for x
    x = 48,641,230.65/8,147.58
  6. Step 6: Final answer
    x = 5,970.02

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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.