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Finding the Fourth Proportional to 14,616.96, 20,170.14 and 8,242.68

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Solution

The fourth proportional to 14,616.96, 20,170.14 and 8,242.68 is: 11,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.96 : 20,170.14 = 8,242.68 : x
  2. Step 2: Convert to fraction form
    14,616.96/20,170.14 = 8,242.68/x
  3. Step 3: Cross multiply
    14,616.96x = 20,170.14 × 8,242.68
  4. Step 4: Simplify right side
    14,616.96x = 166,256,009.58
  5. Step 5: Solve for x
    x = 166,256,009.58/14,616.96
  6. Step 6: Final answer
    x = 11,374.19

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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.