Home / 12,768.41-19,193.61-11,855.33

Finding the Fourth Proportional to 12,768.41, 19,193.61 and 11,855.33

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Solution

The fourth proportional to 12,768.41, 19,193.61 and 11,855.33 is: 17,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.41 : 19,193.61 = 11,855.33 : x
  2. Step 2: Convert to fraction form
    12,768.41/19,193.61 = 11,855.33/x
  3. Step 3: Cross multiply
    12,768.41x = 19,193.61 × 11,855.33
  4. Step 4: Simplify right side
    12,768.41x = 227,546,484.47
  5. Step 5: Solve for x
    x = 227,546,484.47/12,768.41
  6. Step 6: Final answer
    x = 17,821.06

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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.