Home / 8,416.11-12,627.41-3,220.77

Finding the Fourth Proportional to 8,416.11, 12,627.41 and 3,220.77

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Solution

The fourth proportional to 8,416.11, 12,627.41 and 3,220.77 is: 4,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.11 : 12,627.41 = 3,220.77 : x
  2. Step 2: Convert to fraction form
    8,416.11/12,627.41 = 3,220.77/x
  3. Step 3: Cross multiply
    8,416.11x = 12,627.41 × 3,220.77
  4. Step 4: Simplify right side
    8,416.11x = 40,669,967.20
  5. Step 5: Solve for x
    x = 40,669,967.20/8,416.11
  6. Step 6: Final answer
    x = 4,832.39

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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.