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Finding the Fourth Proportional to 10,819.09, 16,228.64 and 2,611.09

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Solution

The fourth proportional to 10,819.09, 16,228.64 and 2,611.09 is: 3,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.09 : 16,228.64 = 2,611.09 : x
  2. Step 2: Convert to fraction form
    10,819.09/16,228.64 = 2,611.09/x
  3. Step 3: Cross multiply
    10,819.09x = 16,228.64 × 2,611.09
  4. Step 4: Simplify right side
    10,819.09x = 42,374,426.56
  5. Step 5: Solve for x
    x = 42,374,426.56/10,819.09
  6. Step 6: Final answer
    x = 3,916.64

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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.