Home / 18,729.06-25,847.40-10,770.78

Finding the Fourth Proportional to 18,729.06, 25,847.40 and 10,770.78

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Solution

The fourth proportional to 18,729.06, 25,847.40 and 10,770.78 is: 14,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.06 : 25,847.40 = 10,770.78 : x
  2. Step 2: Convert to fraction form
    18,729.06/25,847.40 = 10,770.78/x
  3. Step 3: Cross multiply
    18,729.06x = 25,847.40 × 10,770.78
  4. Step 4: Simplify right side
    18,729.06x = 278,396,658.97
  5. Step 5: Solve for x
    x = 278,396,658.97/18,729.06
  6. Step 6: Final answer
    x = 14,864.42

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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.