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Finding the Fourth Proportional to 8,665.02, 12,998.90 and 3,736.05

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Solution

The fourth proportional to 8,665.02, 12,998.90 and 3,736.05 is: 5,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.02 : 12,998.90 = 3,736.05 : x
  2. Step 2: Convert to fraction form
    8,665.02/12,998.90 = 3,736.05/x
  3. Step 3: Cross multiply
    8,665.02x = 12,998.90 × 3,736.05
  4. Step 4: Simplify right side
    8,665.02x = 48,564,521.66
  5. Step 5: Solve for x
    x = 48,564,521.66/8,665.02
  6. Step 6: Final answer
    x = 5,604.66

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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.