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Finding the Fourth Proportional to 8,866.35, 12,234.09 and 5,682.45

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Solution

The fourth proportional to 8,866.35, 12,234.09 and 5,682.45 is: 7,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.35 : 12,234.09 = 5,682.45 : x
  2. Step 2: Convert to fraction form
    8,866.35/12,234.09 = 5,682.45/x
  3. Step 3: Cross multiply
    8,866.35x = 12,234.09 × 5,682.45
  4. Step 4: Simplify right side
    8,866.35x = 69,519,604.72
  5. Step 5: Solve for x
    x = 69,519,604.72/8,866.35
  6. Step 6: Final answer
    x = 7,840.84

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Half scale
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Double scale
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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.