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Finding the Fourth Proportional to 9,129.84, 13,694.76 and 3,661.68

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Solution

The fourth proportional to 9,129.84, 13,694.76 and 3,661.68 is: 5,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.84 : 13,694.76 = 3,661.68 : x
  2. Step 2: Convert to fraction form
    9,129.84/13,694.76 = 3,661.68/x
  3. Step 3: Cross multiply
    9,129.84x = 13,694.76 × 3,661.68
  4. Step 4: Simplify right side
    9,129.84x = 50,145,828.80
  5. Step 5: Solve for x
    x = 50,145,828.80/9,129.84
  6. Step 6: Final answer
    x = 5,492.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.