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Finding the Fourth Proportional to 13,265.69, 19,880.41 and 7,333.79

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Solution

The fourth proportional to 13,265.69, 19,880.41 and 7,333.79 is: 10,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.69 : 19,880.41 = 7,333.79 : x
  2. Step 2: Convert to fraction form
    13,265.69/19,880.41 = 7,333.79/x
  3. Step 3: Cross multiply
    13,265.69x = 19,880.41 × 7,333.79
  4. Step 4: Simplify right side
    13,265.69x = 145,798,752.05
  5. Step 5: Solve for x
    x = 145,798,752.05/13,265.69
  6. Step 6: Final answer
    x = 10,990.66

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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.