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Finding the Fourth Proportional to 11,509.89, 17,249.08 and 8,696.41

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Solution

The fourth proportional to 11,509.89, 17,249.08 and 8,696.41 is: 13,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.89 : 17,249.08 = 8,696.41 : x
  2. Step 2: Convert to fraction form
    11,509.89/17,249.08 = 8,696.41/x
  3. Step 3: Cross multiply
    11,509.89x = 17,249.08 × 8,696.41
  4. Step 4: Simplify right side
    11,509.89x = 150,005,071.80
  5. Step 5: Solve for x
    x = 150,005,071.80/11,509.89
  6. Step 6: Final answer
    x = 13,032.71

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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.