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Finding the Fourth Proportional to 9,334.20, 13,960.80 and 8,354.10

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Solution

The fourth proportional to 9,334.20, 13,960.80 and 8,354.10 is: 12,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.20 : 13,960.80 = 8,354.10 : x
  2. Step 2: Convert to fraction form
    9,334.20/13,960.80 = 8,354.10/x
  3. Step 3: Cross multiply
    9,334.20x = 13,960.80 × 8,354.10
  4. Step 4: Simplify right side
    9,334.20x = 116,629,919.28
  5. Step 5: Solve for x
    x = 116,629,919.28/9,334.20
  6. Step 6: Final answer
    x = 12,494.90

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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.