Home / 18,975.80-26,186.54-11,022.68

Finding the Fourth Proportional to 18,975.80, 26,186.54 and 11,022.68

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Solution

The fourth proportional to 18,975.80, 26,186.54 and 11,022.68 is: 15,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,975.80 : 26,186.54 = 11,022.68 : x
  2. Step 2: Convert to fraction form
    18,975.80/26,186.54 = 11,022.68/x
  3. Step 3: Cross multiply
    18,975.80x = 26,186.54 × 11,022.68
  4. Step 4: Simplify right side
    18,975.80x = 288,645,850.73
  5. Step 5: Solve for x
    x = 288,645,850.73/18,975.80
  6. Step 6: Final answer
    x = 15,211.26

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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.