Home / 14,191.70-21,286.83-5,425.94

Finding the Fourth Proportional to 14,191.70, 21,286.83 and 5,425.94

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Solution

The fourth proportional to 14,191.70, 21,286.83 and 5,425.94 is: 8,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.70 : 21,286.83 = 5,425.94 : x
  2. Step 2: Convert to fraction form
    14,191.70/21,286.83 = 5,425.94/x
  3. Step 3: Cross multiply
    14,191.70x = 21,286.83 × 5,425.94
  4. Step 4: Simplify right side
    14,191.70x = 115,501,062.37
  5. Step 5: Solve for x
    x = 115,501,062.37/14,191.70
  6. Step 6: Final answer
    x = 8,138.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.