Home / 8,612.20-11,872.20-5,462.92

Finding the Fourth Proportional to 8,612.20, 11,872.20 and 5,462.92

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Solution

The fourth proportional to 8,612.20, 11,872.20 and 5,462.92 is: 7,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.20 : 11,872.20 = 5,462.92 : x
  2. Step 2: Convert to fraction form
    8,612.20/11,872.20 = 5,462.92/x
  3. Step 3: Cross multiply
    8,612.20x = 11,872.20 × 5,462.92
  4. Step 4: Simplify right side
    8,612.20x = 64,856,878.82
  5. Step 5: Solve for x
    x = 64,856,878.82/8,612.20
  6. Step 6: Final answer
    x = 7,530.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.