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Finding the Fourth Proportional to 12,549.57, 17,318.40 and 6,960.57

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Solution

The fourth proportional to 12,549.57, 17,318.40 and 6,960.57 is: 9,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.57 : 17,318.40 = 6,960.57 : x
  2. Step 2: Convert to fraction form
    12,549.57/17,318.40 = 6,960.57/x
  3. Step 3: Cross multiply
    12,549.57x = 17,318.40 × 6,960.57
  4. Step 4: Simplify right side
    12,549.57x = 120,545,935.49
  5. Step 5: Solve for x
    x = 120,545,935.49/12,549.57
  6. Step 6: Final answer
    x = 9,605.58

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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.