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Finding the Fourth Proportional to 6,234.27, 8,640.42 and 6,117.63

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Solution

The fourth proportional to 6,234.27, 8,640.42 and 6,117.63 is: 8,478.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,234.27 : 8,640.42 = 6,117.63 : x
  2. Step 2: Convert to fraction form
    6,234.27/8,640.42 = 6,117.63/x
  3. Step 3: Cross multiply
    6,234.27x = 8,640.42 × 6,117.63
  4. Step 4: Simplify right side
    6,234.27x = 52,858,871.67
  5. Step 5: Solve for x
    x = 52,858,871.67/6,234.27
  6. Step 6: Final answer
    x = 8,478.76

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Half scale
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Double scale
Find fourth proportional to 6,235.27, 8,641.81 and 6,118.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.