Home / 11,654.21-16,083.71-6,620.00

Finding the Fourth Proportional to 11,654.21, 16,083.71 and 6,620.00

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Solution

The fourth proportional to 11,654.21, 16,083.71 and 6,620.00 is: 9,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,654.21 : 16,083.71 = 6,620.00 : x
  2. Step 2: Convert to fraction form
    11,654.21/16,083.71 = 6,620.00/x
  3. Step 3: Cross multiply
    11,654.21x = 16,083.71 × 6,620.00
  4. Step 4: Simplify right side
    11,654.21x = 106,474,216.96
  5. Step 5: Solve for x
    x = 106,474,216.96/11,654.21
  6. Step 6: Final answer
    x = 9,136.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.