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Finding the Fourth Proportional to 19,210.56, 28,759.80 and 11,792.53

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Solution

The fourth proportional to 19,210.56, 28,759.80 and 11,792.53 is: 17,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.56 : 28,759.80 = 11,792.53 : x
  2. Step 2: Convert to fraction form
    19,210.56/28,759.80 = 11,792.53/x
  3. Step 3: Cross multiply
    19,210.56x = 28,759.80 × 11,792.53
  4. Step 4: Simplify right side
    19,210.56x = 339,150,804.29
  5. Step 5: Solve for x
    x = 339,150,804.29/19,210.56
  6. Step 6: Final answer
    x = 17,654.39

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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.