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Finding the Fourth Proportional to 8,858.53, 13,289.43 and 3,664.81

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Solution

The fourth proportional to 8,858.53, 13,289.43 and 3,664.81 is: 5,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.53 : 13,289.43 = 3,664.81 : x
  2. Step 2: Convert to fraction form
    8,858.53/13,289.43 = 3,664.81/x
  3. Step 3: Cross multiply
    8,858.53x = 13,289.43 × 3,664.81
  4. Step 4: Simplify right side
    8,858.53x = 48,703,235.96
  5. Step 5: Solve for x
    x = 48,703,235.96/8,858.53
  6. Step 6: Final answer
    x = 5,497.89

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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.