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Finding the Fourth Proportional to 12,252.47, 16,907.91 and 7,216.90

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Solution

The fourth proportional to 12,252.47, 16,907.91 and 7,216.90 is: 9,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.47 : 16,907.91 = 7,216.90 : x
  2. Step 2: Convert to fraction form
    12,252.47/16,907.91 = 7,216.90/x
  3. Step 3: Cross multiply
    12,252.47x = 16,907.91 × 7,216.90
  4. Step 4: Simplify right side
    12,252.47x = 122,022,695.68
  5. Step 5: Solve for x
    x = 122,022,695.68/12,252.47
  6. Step 6: Final answer
    x = 9,959.03

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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.