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Finding the Fourth Proportional to 8,396.36, 12,644.52 and 7,313.80

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Solution

The fourth proportional to 8,396.36, 12,644.52 and 7,313.80 is: 11,014.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.36 : 12,644.52 = 7,313.80 : x
  2. Step 2: Convert to fraction form
    8,396.36/12,644.52 = 7,313.80/x
  3. Step 3: Cross multiply
    8,396.36x = 12,644.52 × 7,313.80
  4. Step 4: Simplify right side
    8,396.36x = 92,479,490.38
  5. Step 5: Solve for x
    x = 92,479,490.38/8,396.36
  6. Step 6: Final answer
    x = 11,014.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.