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Finding the Fourth Proportional to 8,858.57, 13,289.48 and 3,664.85

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Solution

The fourth proportional to 8,858.57, 13,289.48 and 3,664.85 is: 5,497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.57 : 13,289.48 = 3,664.85 : x
  2. Step 2: Convert to fraction form
    8,858.57/13,289.48 = 3,664.85/x
  3. Step 3: Cross multiply
    8,858.57x = 13,289.48 × 3,664.85
  4. Step 4: Simplify right side
    8,858.57x = 48,703,866.01
  5. Step 5: Solve for x
    x = 48,703,866.01/8,858.57
  6. Step 6: Final answer
    x = 5,497.94

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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.