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Finding the Fourth Proportional to 7,958.70, 11,940.45 and 4,262.70

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Solution

The fourth proportional to 7,958.70, 11,940.45 and 4,262.70 is: 6,395.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.70 : 11,940.45 = 4,262.70 : x
  2. Step 2: Convert to fraction form
    7,958.70/11,940.45 = 4,262.70/x
  3. Step 3: Cross multiply
    7,958.70x = 11,940.45 × 4,262.70
  4. Step 4: Simplify right side
    7,958.70x = 50,898,556.22
  5. Step 5: Solve for x
    x = 50,898,556.22/7,958.70
  6. Step 6: Final answer
    x = 6,395.34

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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.