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Finding the Fourth Proportional to 11,819.08, 17,728.54 and 3,611.08

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Solution

The fourth proportional to 11,819.08, 17,728.54 and 3,611.08 is: 5,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.08 : 17,728.54 = 3,611.08 : x
  2. Step 2: Convert to fraction form
    11,819.08/17,728.54 = 3,611.08/x
  3. Step 3: Cross multiply
    11,819.08x = 17,728.54 × 3,611.08
  4. Step 4: Simplify right side
    11,819.08x = 64,019,176.22
  5. Step 5: Solve for x
    x = 64,019,176.22/11,819.08
  6. Step 6: Final answer
    x = 5,416.60

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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.