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Finding the Fourth Proportional to 8,665.04, 12,992.29 and 3,393.77

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Solution

The fourth proportional to 8,665.04, 12,992.29 and 3,393.77 is: 5,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.04 : 12,992.29 = 3,393.77 : x
  2. Step 2: Convert to fraction form
    8,665.04/12,992.29 = 3,393.77/x
  3. Step 3: Cross multiply
    8,665.04x = 12,992.29 × 3,393.77
  4. Step 4: Simplify right side
    8,665.04x = 44,092,770.59
  5. Step 5: Solve for x
    x = 44,092,770.59/8,665.04
  6. Step 6: Final answer
    x = 5,088.58

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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.