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Finding the Fourth Proportional to 14,440.95, 21,633.39 and 8,181.72

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Solution

The fourth proportional to 14,440.95, 21,633.39 and 8,181.72 is: 12,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,440.95 : 21,633.39 = 8,181.72 : x
  2. Step 2: Convert to fraction form
    14,440.95/21,633.39 = 8,181.72/x
  3. Step 3: Cross multiply
    14,440.95x = 21,633.39 × 8,181.72
  4. Step 4: Simplify right side
    14,440.95x = 176,998,339.63
  5. Step 5: Solve for x
    x = 176,998,339.63/14,440.95
  6. Step 6: Final answer
    x = 12,256.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.