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Finding the Fourth Proportional to 14,620.84, 21,893.90 and 8,039.79

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Solution

The fourth proportional to 14,620.84, 21,893.90 and 8,039.79 is: 12,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.84 : 21,893.90 = 8,039.79 : x
  2. Step 2: Convert to fraction form
    14,620.84/21,893.90 = 8,039.79/x
  3. Step 3: Cross multiply
    14,620.84x = 21,893.90 × 8,039.79
  4. Step 4: Simplify right side
    14,620.84x = 176,022,318.08
  5. Step 5: Solve for x
    x = 176,022,318.08/14,620.84
  6. Step 6: Final answer
    x = 12,039.14

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1.5x scale

Why These Related Problems?

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