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Finding the Fourth Proportional to 13,008.94, 17,960.07 and 8,540.51

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Solution

The fourth proportional to 13,008.94, 17,960.07 and 8,540.51 is: 11,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.94 : 17,960.07 = 8,540.51 : x
  2. Step 2: Convert to fraction form
    13,008.94/17,960.07 = 8,540.51/x
  3. Step 3: Cross multiply
    13,008.94x = 17,960.07 × 8,540.51
  4. Step 4: Simplify right side
    13,008.94x = 153,388,157.44
  5. Step 5: Solve for x
    x = 153,388,157.44/13,008.94
  6. Step 6: Final answer
    x = 11,790.98

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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.