Home / 8,272.10-12,399.24-3,339.20

Finding the Fourth Proportional to 8,272.10, 12,399.24 and 3,339.20

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Solution

The fourth proportional to 8,272.10, 12,399.24 and 3,339.20 is: 5,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.10 : 12,399.24 = 3,339.20 : x
  2. Step 2: Convert to fraction form
    8,272.10/12,399.24 = 3,339.20/x
  3. Step 3: Cross multiply
    8,272.10x = 12,399.24 × 3,339.20
  4. Step 4: Simplify right side
    8,272.10x = 41,403,542.21
  5. Step 5: Solve for x
    x = 41,403,542.21/8,272.10
  6. Step 6: Final answer
    x = 5,005.20

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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.