Home / 8,105.28-11,185.20-4,520.16

Finding the Fourth Proportional to 8,105.28, 11,185.20 and 4,520.16

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Solution

The fourth proportional to 8,105.28, 11,185.20 and 4,520.16 is: 6,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.28 : 11,185.20 = 4,520.16 : x
  2. Step 2: Convert to fraction form
    8,105.28/11,185.20 = 4,520.16/x
  3. Step 3: Cross multiply
    8,105.28x = 11,185.20 × 4,520.16
  4. Step 4: Simplify right side
    8,105.28x = 50,558,893.63
  5. Step 5: Solve for x
    x = 50,558,893.63/8,105.28
  6. Step 6: Final answer
    x = 6,237.77

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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.