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Finding the Fourth Proportional to 12,622.37, 17,418.89 and 7,320.27

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Solution

The fourth proportional to 12,622.37, 17,418.89 and 7,320.27 is: 10,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.37 : 17,418.89 = 7,320.27 : x
  2. Step 2: Convert to fraction form
    12,622.37/17,418.89 = 7,320.27/x
  3. Step 3: Cross multiply
    12,622.37x = 17,418.89 × 7,320.27
  4. Step 4: Simplify right side
    12,622.37x = 127,510,941.30
  5. Step 5: Solve for x
    x = 127,510,941.30/12,622.37
  6. Step 6: Final answer
    x = 10,101.98

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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.