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Finding the Fourth Proportional to 12,644.72, 17,447.11 and 7,266.12

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Solution

The fourth proportional to 12,644.72, 17,447.11 and 7,266.12 is: 10,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.72 : 17,447.11 = 7,266.12 : x
  2. Step 2: Convert to fraction form
    12,644.72/17,447.11 = 7,266.12/x
  3. Step 3: Cross multiply
    12,644.72x = 17,447.11 × 7,266.12
  4. Step 4: Simplify right side
    12,644.72x = 126,772,813.08
  5. Step 5: Solve for x
    x = 126,772,813.08/12,644.72
  6. Step 6: Final answer
    x = 10,025.75

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Similar ratio
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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.