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Finding the Fourth Proportional to 8,614.08, 12,920.16 and 3,067.20

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Solution

The fourth proportional to 8,614.08, 12,920.16 and 3,067.20 is: 4,600.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.08 : 12,920.16 = 3,067.20 : x
  2. Step 2: Convert to fraction form
    8,614.08/12,920.16 = 3,067.20/x
  3. Step 3: Cross multiply
    8,614.08x = 12,920.16 × 3,067.20
  4. Step 4: Simplify right side
    8,614.08x = 39,628,714.75
  5. Step 5: Solve for x
    x = 39,628,714.75/8,614.08
  6. Step 6: Final answer
    x = 4,600.46

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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.