Home / 18,729.06-25,847.31-10,771.11

Finding the Fourth Proportional to 18,729.06, 25,847.31 and 10,771.11

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Solution

The fourth proportional to 18,729.06, 25,847.31 and 10,771.11 is: 14,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.06 : 25,847.31 = 10,771.11 : x
  2. Step 2: Convert to fraction form
    18,729.06/25,847.31 = 10,771.11/x
  3. Step 3: Cross multiply
    18,729.06x = 25,847.31 × 10,771.11
  4. Step 4: Simplify right side
    18,729.06x = 278,404,219.21
  5. Step 5: Solve for x
    x = 278,404,219.21/18,729.06
  6. Step 6: Final answer
    x = 14,864.83

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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.