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Finding the Fourth Proportional to 13,915.54, 19,203.42 and 7,627.96

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Solution

The fourth proportional to 13,915.54, 19,203.42 and 7,627.96 is: 10,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.54 : 19,203.42 = 7,627.96 : x
  2. Step 2: Convert to fraction form
    13,915.54/19,203.42 = 7,627.96/x
  3. Step 3: Cross multiply
    13,915.54x = 19,203.42 × 7,627.96
  4. Step 4: Simplify right side
    13,915.54x = 146,482,919.62
  5. Step 5: Solve for x
    x = 146,482,919.62/13,915.54
  6. Step 6: Final answer
    x = 10,526.57

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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.