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Finding the Fourth Proportional to 12,968.82, 19,452.96 and 4,203.72

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Solution

The fourth proportional to 12,968.82, 19,452.96 and 4,203.72 is: 6,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.82 : 19,452.96 = 4,203.72 : x
  2. Step 2: Convert to fraction form
    12,968.82/19,452.96 = 4,203.72/x
  3. Step 3: Cross multiply
    12,968.82x = 19,452.96 × 4,203.72
  4. Step 4: Simplify right side
    12,968.82x = 81,774,797.01
  5. Step 5: Solve for x
    x = 81,774,797.01/12,968.82
  6. Step 6: Final answer
    x = 6,305.49

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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.