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Finding the Fourth Proportional to 8,738.88, 13,108.08 and 2,164.92

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Solution

The fourth proportional to 8,738.88, 13,108.08 and 2,164.92 is: 3,247.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.88 : 13,108.08 = 2,164.92 : x
  2. Step 2: Convert to fraction form
    8,738.88/13,108.08 = 2,164.92/x
  3. Step 3: Cross multiply
    8,738.88x = 13,108.08 × 2,164.92
  4. Step 4: Simplify right side
    8,738.88x = 28,377,944.55
  5. Step 5: Solve for x
    x = 28,377,944.55/8,738.88
  6. Step 6: Final answer
    x = 3,247.32

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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.