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Finding the Fourth Proportional to 12,588.80, 17,372.18 and 6,923.57

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Solution

The fourth proportional to 12,588.80, 17,372.18 and 6,923.57 is: 9,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.80 : 17,372.18 = 6,923.57 : x
  2. Step 2: Convert to fraction form
    12,588.80/17,372.18 = 6,923.57/x
  3. Step 3: Cross multiply
    12,588.80x = 17,372.18 × 6,923.57
  4. Step 4: Simplify right side
    12,588.80x = 120,277,469.66
  5. Step 5: Solve for x
    x = 120,277,469.66/12,588.80
  6. Step 6: Final answer
    x = 9,554.32

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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.