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Finding the Fourth Proportional to 9,305.20, 13,917.30 and 8,325.10

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Solution

The fourth proportional to 9,305.20, 13,917.30 and 8,325.10 is: 12,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.20 : 13,917.30 = 8,325.10 : x
  2. Step 2: Convert to fraction form
    9,305.20/13,917.30 = 8,325.10/x
  3. Step 3: Cross multiply
    9,305.20x = 13,917.30 × 8,325.10
  4. Step 4: Simplify right side
    9,305.20x = 115,862,914.23
  5. Step 5: Solve for x
    x = 115,862,914.23/9,305.20
  6. Step 6: Final answer
    x = 12,451.42

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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.