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Finding the Fourth Proportional to 8,485.43, 12,723.03 and 3,804.60

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Solution

The fourth proportional to 8,485.43, 12,723.03 and 3,804.60 is: 5,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.43 : 12,723.03 = 3,804.60 : x
  2. Step 2: Convert to fraction form
    8,485.43/12,723.03 = 3,804.60/x
  3. Step 3: Cross multiply
    8,485.43x = 12,723.03 × 3,804.60
  4. Step 4: Simplify right side
    8,485.43x = 48,405,985.83
  5. Step 5: Solve for x
    x = 48,405,985.83/8,485.43
  6. Step 6: Final answer
    x = 5,704.60

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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.