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Finding the Fourth Proportional to 9,331.92, 13,997.88 and 2,758.68

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Solution

The fourth proportional to 9,331.92, 13,997.88 and 2,758.68 is: 4,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.92 : 13,997.88 = 2,758.68 : x
  2. Step 2: Convert to fraction form
    9,331.92/13,997.88 = 2,758.68/x
  3. Step 3: Cross multiply
    9,331.92x = 13,997.88 × 2,758.68
  4. Step 4: Simplify right side
    9,331.92x = 38,615,671.60
  5. Step 5: Solve for x
    x = 38,615,671.60/9,331.92
  6. Step 6: Final answer
    x = 4,138.02

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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.