Home / 11,819.80-17,664.38-11,136.96

Finding the Fourth Proportional to 11,819.80, 17,664.38 and 11,136.96

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Solution

The fourth proportional to 11,819.80, 17,664.38 and 11,136.96 is: 16,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.80 : 17,664.38 = 11,136.96 : x
  2. Step 2: Convert to fraction form
    11,819.80/17,664.38 = 11,136.96/x
  3. Step 3: Cross multiply
    11,819.80x = 17,664.38 × 11,136.96
  4. Step 4: Simplify right side
    11,819.80x = 196,727,493.48
  5. Step 5: Solve for x
    x = 196,727,493.48/11,819.80
  6. Step 6: Final answer
    x = 16,643.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.