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Finding the Third Proportional to 4,071.94 and 8,385.19

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Solution

The third proportional to 4,071.94 and 8,385.19 is: 17,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.94 : 8,385.19 = 8,385.19 : x
  2. Step 2: Convert to fraction form
    4,071.94/8,385.19 = 8,385.19/x
  3. Step 3: Cross multiply
    4,071.94x = 8,385.19 × 8,385.19
  4. Step 4: Simplify right side
    4,071.94x = 70,311,369.41
  5. Step 5: Solve for x
    x = 70,311,369.41/4,071.94
  6. Step 6: Final answer
    x = 17,267.30

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.