Home / 19,161.78-26,441.20-10,662.54

Finding the Fourth Proportional to 19,161.78, 26,441.20 and 10,662.54

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Solution

The fourth proportional to 19,161.78, 26,441.20 and 10,662.54 is: 14,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.78 : 26,441.20 = 10,662.54 : x
  2. Step 2: Convert to fraction form
    19,161.78/26,441.20 = 10,662.54/x
  3. Step 3: Cross multiply
    19,161.78x = 26,441.20 × 10,662.54
  4. Step 4: Simplify right side
    19,161.78x = 281,930,352.65
  5. Step 5: Solve for x
    x = 281,930,352.65/19,161.78
  6. Step 6: Final answer
    x = 14,713.16

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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.