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Finding the Fourth Proportional to 18,269.54, 27,407.18 and 7,739.59

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Solution

The fourth proportional to 18,269.54, 27,407.18 and 7,739.59 is: 11,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.54 : 27,407.18 = 7,739.59 : x
  2. Step 2: Convert to fraction form
    18,269.54/27,407.18 = 7,739.59/x
  3. Step 3: Cross multiply
    18,269.54x = 27,407.18 × 7,739.59
  4. Step 4: Simplify right side
    18,269.54x = 212,120,336.26
  5. Step 5: Solve for x
    x = 212,120,336.26/18,269.54
  6. Step 6: Final answer
    x = 11,610.60

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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.