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Finding the Fourth Proportional to 8,208, 12,313.68 and 2,364.12

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Solution

The fourth proportional to 8,208, 12,313.68 and 2,364.12 is: 3,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208 : 12,313.68 = 2,364.12 : x
  2. Step 2: Convert to fraction form
    8,208/12,313.68 = 2,364.12/x
  3. Step 3: Cross multiply
    8,208x = 12,313.68 × 2,364.12
  4. Step 4: Simplify right side
    8,208x = 29,111,017.16
  5. Step 5: Solve for x
    x = 29,111,017.16/8,208
  6. Step 6: Final answer
    x = 3,546.66

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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.