Home / 8,771.08-12,105.46-5,630.60

Finding the Fourth Proportional to 8,771.08, 12,105.46 and 5,630.60

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Solution

The fourth proportional to 8,771.08, 12,105.46 and 5,630.60 is: 7,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.08 : 12,105.46 = 5,630.60 : x
  2. Step 2: Convert to fraction form
    8,771.08/12,105.46 = 5,630.60/x
  3. Step 3: Cross multiply
    8,771.08x = 12,105.46 × 5,630.60
  4. Step 4: Simplify right side
    8,771.08x = 68,161,003.08
  5. Step 5: Solve for x
    x = 68,161,003.08/8,771.08
  6. Step 6: Final answer
    x = 7,771.11

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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.