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Finding the Fourth Proportional to 9,383.04, 12,919.68 and 8,333.28

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Solution

The fourth proportional to 9,383.04, 12,919.68 and 8,333.28 is: 11,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.04 : 12,919.68 = 8,333.28 : x
  2. Step 2: Convert to fraction form
    9,383.04/12,919.68 = 8,333.28/x
  3. Step 3: Cross multiply
    9,383.04x = 12,919.68 × 8,333.28
  4. Step 4: Simplify right side
    9,383.04x = 107,663,310.95
  5. Step 5: Solve for x
    x = 107,663,310.95/9,383.04
  6. Step 6: Final answer
    x = 11,474.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.