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Finding the Fourth Proportional to 14,210.74, 21,288.83 and 7,951.79

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Solution

The fourth proportional to 14,210.74, 21,288.83 and 7,951.79 is: 11,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.74 : 21,288.83 = 7,951.79 : x
  2. Step 2: Convert to fraction form
    14,210.74/21,288.83 = 7,951.79/x
  3. Step 3: Cross multiply
    14,210.74x = 21,288.83 × 7,951.79
  4. Step 4: Simplify right side
    14,210.74x = 169,284,199.22
  5. Step 5: Solve for x
    x = 169,284,199.22/14,210.74
  6. Step 6: Final answer
    x = 11,912.41

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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.