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Finding the Fourth Proportional to 12,372.61, 17,072.34 and 7,066.30

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Solution

The fourth proportional to 12,372.61, 17,072.34 and 7,066.30 is: 9,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.61 : 17,072.34 = 7,066.30 : x
  2. Step 2: Convert to fraction form
    12,372.61/17,072.34 = 7,066.30/x
  3. Step 3: Cross multiply
    12,372.61x = 17,072.34 × 7,066.30
  4. Step 4: Simplify right side
    12,372.61x = 120,638,276.14
  5. Step 5: Solve for x
    x = 120,638,276.14/12,372.61
  6. Step 6: Final answer
    x = 9,750.43

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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.