Home / 11,900.48-16,493.90-11,679.20

Finding the Fourth Proportional to 11,900.48, 16,493.90 and 11,679.20

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Solution

The fourth proportional to 11,900.48, 16,493.90 and 11,679.20 is: 16,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.48 : 16,493.90 = 11,679.20 : x
  2. Step 2: Convert to fraction form
    11,900.48/16,493.90 = 11,679.20/x
  3. Step 3: Cross multiply
    11,900.48x = 16,493.90 × 11,679.20
  4. Step 4: Simplify right side
    11,900.48x = 192,635,556.88
  5. Step 5: Solve for x
    x = 192,635,556.88/11,900.48
  6. Step 6: Final answer
    x = 16,187.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.