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Finding the Fourth Proportional to 8,493.55, 12,739.89 and 4,047.96

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Solution

The fourth proportional to 8,493.55, 12,739.89 and 4,047.96 is: 6,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.55 : 12,739.89 = 4,047.96 : x
  2. Step 2: Convert to fraction form
    8,493.55/12,739.89 = 4,047.96/x
  3. Step 3: Cross multiply
    8,493.55x = 12,739.89 × 4,047.96
  4. Step 4: Simplify right side
    8,493.55x = 51,570,565.12
  5. Step 5: Solve for x
    x = 51,570,565.12/8,493.55
  6. Step 6: Final answer
    x = 6,071.73

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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.