Home / 8,216.30-12,321.84-2,668.37

Finding the Fourth Proportional to 8,216.30, 12,321.84 and 2,668.37

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Solution

The fourth proportional to 8,216.30, 12,321.84 and 2,668.37 is: 4,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.30 : 12,321.84 = 2,668.37 : x
  2. Step 2: Convert to fraction form
    8,216.30/12,321.84 = 2,668.37/x
  3. Step 3: Cross multiply
    8,216.30x = 12,321.84 × 2,668.37
  4. Step 4: Simplify right side
    8,216.30x = 32,879,176.60
  5. Step 5: Solve for x
    x = 32,879,176.60/8,216.30
  6. Step 6: Final answer
    x = 4,001.70

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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.