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Finding the Fourth Proportional to 13,902.76, 19,185.84 and 7,615.16

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Solution

The fourth proportional to 13,902.76, 19,185.84 and 7,615.16 is: 10,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.76 : 19,185.84 = 7,615.16 : x
  2. Step 2: Convert to fraction form
    13,902.76/19,185.84 = 7,615.16/x
  3. Step 3: Cross multiply
    13,902.76x = 19,185.84 × 7,615.16
  4. Step 4: Simplify right side
    13,902.76x = 146,103,241.33
  5. Step 5: Solve for x
    x = 146,103,241.33/13,902.76
  6. Step 6: Final answer
    x = 10,508.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.