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Finding the Fourth Proportional to 13,512.24, 18,646.02 and 8,476.24

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Solution

The fourth proportional to 13,512.24, 18,646.02 and 8,476.24 is: 11,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.24 : 18,646.02 = 8,476.24 : x
  2. Step 2: Convert to fraction form
    13,512.24/18,646.02 = 8,476.24/x
  3. Step 3: Cross multiply
    13,512.24x = 18,646.02 × 8,476.24
  4. Step 4: Simplify right side
    13,512.24x = 158,048,140.56
  5. Step 5: Solve for x
    x = 158,048,140.56/13,512.24
  6. Step 6: Final answer
    x = 11,696.66

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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.