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Finding the Fourth Proportional to 14,791.18, 20,406.92 and 9,757.90

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Solution

The fourth proportional to 14,791.18, 20,406.92 and 9,757.90 is: 13,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.18 : 20,406.92 = 9,757.90 : x
  2. Step 2: Convert to fraction form
    14,791.18/20,406.92 = 9,757.90/x
  3. Step 3: Cross multiply
    14,791.18x = 20,406.92 × 9,757.90
  4. Step 4: Simplify right side
    14,791.18x = 199,128,684.67
  5. Step 5: Solve for x
    x = 199,128,684.67/14,791.18
  6. Step 6: Final answer
    x = 13,462.66

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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.