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Finding the Fourth Proportional to 8,416.59, 12,623.27 and 3,221.79

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Solution

The fourth proportional to 8,416.59, 12,623.27 and 3,221.79 is: 4,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.59 : 12,623.27 = 3,221.79 : x
  2. Step 2: Convert to fraction form
    8,416.59/12,623.27 = 3,221.79/x
  3. Step 3: Cross multiply
    8,416.59x = 12,623.27 × 3,221.79
  4. Step 4: Simplify right side
    8,416.59x = 40,669,508.94
  5. Step 5: Solve for x
    x = 40,669,508.94/8,416.59
  6. Step 6: Final answer
    x = 4,832.06

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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.