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Finding the Fourth Proportional to 14,420.90, 19,900.83 and 8,133.27

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Solution

The fourth proportional to 14,420.90, 19,900.83 and 8,133.27 is: 11,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.90 : 19,900.83 = 8,133.27 : x
  2. Step 2: Convert to fraction form
    14,420.90/19,900.83 = 8,133.27/x
  3. Step 3: Cross multiply
    14,420.90x = 19,900.83 × 8,133.27
  4. Step 4: Simplify right side
    14,420.90x = 161,858,782.95
  5. Step 5: Solve for x
    x = 161,858,782.95/14,420.90
  6. Step 6: Final answer
    x = 11,223.91

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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.