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Finding the Fourth Proportional to 6,163.68, 8,502.12 and 5,379.60

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Solution

The fourth proportional to 6,163.68, 8,502.12 and 5,379.60 is: 7,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,163.68 : 8,502.12 = 5,379.60 : x
  2. Step 2: Convert to fraction form
    6,163.68/8,502.12 = 5,379.60/x
  3. Step 3: Cross multiply
    6,163.68x = 8,502.12 × 5,379.60
  4. Step 4: Simplify right side
    6,163.68x = 45,738,004.75
  5. Step 5: Solve for x
    x = 45,738,004.75/6,163.68
  6. Step 6: Final answer
    x = 7,420.57

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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.