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Finding the Fourth Proportional to 12,672.85, 19,010.26 and 3,787.50

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Solution

The fourth proportional to 12,672.85, 19,010.26 and 3,787.50 is: 5,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.85 : 19,010.26 = 3,787.50 : x
  2. Step 2: Convert to fraction form
    12,672.85/19,010.26 = 3,787.50/x
  3. Step 3: Cross multiply
    12,672.85x = 19,010.26 × 3,787.50
  4. Step 4: Simplify right side
    12,672.85x = 72,001,350.28
  5. Step 5: Solve for x
    x = 72,001,350.28/12,672.85
  6. Step 6: Final answer
    x = 5,681.54

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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.