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Finding the Fourth Proportional to 8,669.61, 13,007.02 and 3,669.41

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Solution

The fourth proportional to 8,669.61, 13,007.02 and 3,669.41 is: 5,505.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.61 : 13,007.02 = 3,669.41 : x
  2. Step 2: Convert to fraction form
    8,669.61/13,007.02 = 3,669.41/x
  3. Step 3: Cross multiply
    8,669.61x = 13,007.02 × 3,669.41
  4. Step 4: Simplify right side
    8,669.61x = 47,728,089.26
  5. Step 5: Solve for x
    x = 47,728,089.26/8,669.61
  6. Step 6: Final answer
    x = 5,505.22

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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.