Home / 18,729.38-25,846.55-10,771.43

Finding the Fourth Proportional to 18,729.38, 25,846.55 and 10,771.43

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Solution

The fourth proportional to 18,729.38, 25,846.55 and 10,771.43 is: 14,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.38 : 25,846.55 = 10,771.43 : x
  2. Step 2: Convert to fraction form
    18,729.38/25,846.55 = 10,771.43/x
  3. Step 3: Cross multiply
    18,729.38x = 25,846.55 × 10,771.43
  4. Step 4: Simplify right side
    18,729.38x = 278,404,120.98
  5. Step 5: Solve for x
    x = 278,404,120.98/18,729.38
  6. Step 6: Final answer
    x = 14,864.57

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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.