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Finding the Fourth Proportional to 13,170.64, 19,759.02 and 3,810.28

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Solution

The fourth proportional to 13,170.64, 19,759.02 and 3,810.28 is: 5,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.64 : 19,759.02 = 3,810.28 : x
  2. Step 2: Convert to fraction form
    13,170.64/19,759.02 = 3,810.28/x
  3. Step 3: Cross multiply
    13,170.64x = 19,759.02 × 3,810.28
  4. Step 4: Simplify right side
    13,170.64x = 75,287,398.73
  5. Step 5: Solve for x
    x = 75,287,398.73/13,170.64
  6. Step 6: Final answer
    x = 5,716.31

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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.