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Finding the Fourth Proportional to 18,145.64, 27,229 and 7,059.98

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Solution

The fourth proportional to 18,145.64, 27,229 and 7,059.98 is: 10,594.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.64 : 27,229 = 7,059.98 : x
  2. Step 2: Convert to fraction form
    18,145.64/27,229 = 7,059.98/x
  3. Step 3: Cross multiply
    18,145.64x = 27,229 × 7,059.98
  4. Step 4: Simplify right side
    18,145.64x = 192,236,195.42
  5. Step 5: Solve for x
    x = 192,236,195.42/18,145.64
  6. Step 6: Final answer
    x = 10,594.07

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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.