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Finding the Fourth Proportional to 13,400.26, 18,477.21 and 8,548.52

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Solution

The fourth proportional to 13,400.26, 18,477.21 and 8,548.52 is: 11,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.26 : 18,477.21 = 8,548.52 : x
  2. Step 2: Convert to fraction form
    13,400.26/18,477.21 = 8,548.52/x
  3. Step 3: Cross multiply
    13,400.26x = 18,477.21 × 8,548.52
  4. Step 4: Simplify right side
    13,400.26x = 157,952,808.19
  5. Step 5: Solve for x
    x = 157,952,808.19/13,400.26
  6. Step 6: Final answer
    x = 11,787.29

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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.