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Finding the Fourth Proportional to 10,998.72, 16,496.48 and 3,205.44

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Solution

The fourth proportional to 10,998.72, 16,496.48 and 3,205.44 is: 4,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.72 : 16,496.48 = 3,205.44 : x
  2. Step 2: Convert to fraction form
    10,998.72/16,496.48 = 3,205.44/x
  3. Step 3: Cross multiply
    10,998.72x = 16,496.48 × 3,205.44
  4. Step 4: Simplify right side
    10,998.72x = 52,878,476.85
  5. Step 5: Solve for x
    x = 52,878,476.85/10,998.72
  6. Step 6: Final answer
    x = 4,807.69

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1.5x scale

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.