Home / 19,186.39-26,477.26-11,121.60

Finding the Fourth Proportional to 19,186.39, 26,477.26 and 11,121.60

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Solution

The fourth proportional to 19,186.39, 26,477.26 and 11,121.60 is: 15,347.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.39 : 26,477.26 = 11,121.60 : x
  2. Step 2: Convert to fraction form
    19,186.39/26,477.26 = 11,121.60/x
  3. Step 3: Cross multiply
    19,186.39x = 26,477.26 × 11,121.60
  4. Step 4: Simplify right side
    19,186.39x = 294,469,494.82
  5. Step 5: Solve for x
    x = 294,469,494.82/19,186.39
  6. Step 6: Final answer
    x = 15,347.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.