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Finding the Fourth Proportional to 18,269.04, 27,406.43 and 7,739.09

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Solution

The fourth proportional to 18,269.04, 27,406.43 and 7,739.09 is: 11,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.04 : 27,406.43 = 7,739.09 : x
  2. Step 2: Convert to fraction form
    18,269.04/27,406.43 = 7,739.09/x
  3. Step 3: Cross multiply
    18,269.04x = 27,406.43 × 7,739.09
  4. Step 4: Simplify right side
    18,269.04x = 212,100,828.35
  5. Step 5: Solve for x
    x = 212,100,828.35/18,269.04
  6. Step 6: Final answer
    x = 11,609.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.