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Finding the Fourth Proportional to 12,396.38, 17,107.00 and 6,807.38

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Solution

The fourth proportional to 12,396.38, 17,107.00 and 6,807.38 is: 9,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.38 : 17,107.00 = 6,807.38 : x
  2. Step 2: Convert to fraction form
    12,396.38/17,107.00 = 6,807.38/x
  3. Step 3: Cross multiply
    12,396.38x = 17,107.00 × 6,807.38
  4. Step 4: Simplify right side
    12,396.38x = 116,453,747.11
  5. Step 5: Solve for x
    x = 116,453,747.11/12,396.38
  6. Step 6: Final answer
    x = 9,394.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.