Home / 12,200.06-18,211.80-11,286.99

Finding the Fourth Proportional to 12,200.06, 18,211.80 and 11,286.99

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Solution

The fourth proportional to 12,200.06, 18,211.80 and 11,286.99 is: 16,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.06 : 18,211.80 = 11,286.99 : x
  2. Step 2: Convert to fraction form
    12,200.06/18,211.80 = 11,286.99/x
  3. Step 3: Cross multiply
    12,200.06x = 18,211.80 × 11,286.99
  4. Step 4: Simplify right side
    12,200.06x = 205,556,404.48
  5. Step 5: Solve for x
    x = 205,556,404.48/12,200.06
  6. Step 6: Final answer
    x = 16,848.80

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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.