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Finding the Fourth Proportional to 16,262.70, 22,438.78 and 9,090.55

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Solution

The fourth proportional to 16,262.70, 22,438.78 and 9,090.55 is: 12,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,262.70 : 22,438.78 = 9,090.55 : x
  2. Step 2: Convert to fraction form
    16,262.70/22,438.78 = 9,090.55/x
  3. Step 3: Cross multiply
    16,262.70x = 22,438.78 × 9,090.55
  4. Step 4: Simplify right side
    16,262.70x = 203,980,851.53
  5. Step 5: Solve for x
    x = 203,980,851.53/16,262.70
  6. Step 6: Final answer
    x = 12,542.87

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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.