Home / 8,105.60-12,157.32-2,261.72

Finding the Fourth Proportional to 8,105.60, 12,157.32 and 2,261.72

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Solution

The fourth proportional to 8,105.60, 12,157.32 and 2,261.72 is: 3,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.60 : 12,157.32 = 2,261.72 : x
  2. Step 2: Convert to fraction form
    8,105.60/12,157.32 = 2,261.72/x
  3. Step 3: Cross multiply
    8,105.60x = 12,157.32 × 2,261.72
  4. Step 4: Simplify right side
    8,105.60x = 27,496,453.79
  5. Step 5: Solve for x
    x = 27,496,453.79/8,105.60
  6. Step 6: Final answer
    x = 3,392.28

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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.