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Finding the Fourth Proportional to 8,866.02, 13,302.06 and 3,939.12

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Solution

The fourth proportional to 8,866.02, 13,302.06 and 3,939.12 is: 5,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.02 : 13,302.06 = 3,939.12 : x
  2. Step 2: Convert to fraction form
    8,866.02/13,302.06 = 3,939.12/x
  3. Step 3: Cross multiply
    8,866.02x = 13,302.06 × 3,939.12
  4. Step 4: Simplify right side
    8,866.02x = 52,398,410.59
  5. Step 5: Solve for x
    x = 52,398,410.59/8,866.02
  6. Step 6: Final answer
    x = 5,910.03

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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.