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Finding the Fourth Proportional to 12,432.83, 17,153.44 and 7,647.75

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Solution

The fourth proportional to 12,432.83, 17,153.44 and 7,647.75 is: 10,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.83 : 17,153.44 = 7,647.75 : x
  2. Step 2: Convert to fraction form
    12,432.83/17,153.44 = 7,647.75/x
  3. Step 3: Cross multiply
    12,432.83x = 17,153.44 × 7,647.75
  4. Step 4: Simplify right side
    12,432.83x = 131,185,201.64
  5. Step 5: Solve for x
    x = 131,185,201.64/12,432.83
  6. Step 6: Final answer
    x = 10,551.52

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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.