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Finding the Fourth Proportional to 18,649.55, 27,935.44 and 8,268.59

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Solution

The fourth proportional to 18,649.55, 27,935.44 and 8,268.59 is: 12,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.55 : 27,935.44 = 8,268.59 : x
  2. Step 2: Convert to fraction form
    18,649.55/27,935.44 = 8,268.59/x
  3. Step 3: Cross multiply
    18,649.55x = 27,935.44 × 8,268.59
  4. Step 4: Simplify right side
    18,649.55x = 230,986,749.00
  5. Step 5: Solve for x
    x = 230,986,749.00/18,649.55
  6. Step 6: Final answer
    x = 12,385.65

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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.