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Finding the Fourth Proportional to 15,523.27, 21,422.00 and 8,449.67

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Solution

The fourth proportional to 15,523.27, 21,422.00 and 8,449.67 is: 11,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.27 : 21,422.00 = 8,449.67 : x
  2. Step 2: Convert to fraction form
    15,523.27/21,422.00 = 8,449.67/x
  3. Step 3: Cross multiply
    15,523.27x = 21,422.00 × 8,449.67
  4. Step 4: Simplify right side
    15,523.27x = 181,008,905.42
  5. Step 5: Solve for x
    x = 181,008,905.42/15,523.27
  6. Step 6: Final answer
    x = 11,660.49

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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.