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Finding the Fourth Proportional to 8,485.44, 12,728.52 and 2,936.10

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Solution

The fourth proportional to 8,485.44, 12,728.52 and 2,936.10 is: 4,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.44 : 12,728.52 = 2,936.10 : x
  2. Step 2: Convert to fraction form
    8,485.44/12,728.52 = 2,936.10/x
  3. Step 3: Cross multiply
    8,485.44x = 12,728.52 × 2,936.10
  4. Step 4: Simplify right side
    8,485.44x = 37,372,207.57
  5. Step 5: Solve for x
    x = 37,372,207.57/8,485.44
  6. Step 6: Final answer
    x = 4,404.27

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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.