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Finding the Fourth Proportional to 7,937.75, 11,903.87 and 3,256.43

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Solution

The fourth proportional to 7,937.75, 11,903.87 and 3,256.43 is: 4,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.75 : 11,903.87 = 3,256.43 : x
  2. Step 2: Convert to fraction form
    7,937.75/11,903.87 = 3,256.43/x
  3. Step 3: Cross multiply
    7,937.75x = 11,903.87 × 3,256.43
  4. Step 4: Simplify right side
    7,937.75x = 38,764,132.86
  5. Step 5: Solve for x
    x = 38,764,132.86/7,937.75
  6. Step 6: Final answer
    x = 4,883.51

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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.