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Finding the Fourth Proportional to 14,798.44, 20,421.54 and 8,174.44

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Solution

The fourth proportional to 14,798.44, 20,421.54 and 8,174.44 is: 11,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.44 : 20,421.54 = 8,174.44 : x
  2. Step 2: Convert to fraction form
    14,798.44/20,421.54 = 8,174.44/x
  3. Step 3: Cross multiply
    14,798.44x = 20,421.54 × 8,174.44
  4. Step 4: Simplify right side
    14,798.44x = 166,934,653.44
  5. Step 5: Solve for x
    x = 166,934,653.44/14,798.44
  6. Step 6: Final answer
    x = 11,280.56

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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.