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Finding the Fourth Proportional to 18,586.29, 27,879.49 and 13,064.34

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Solution

The fourth proportional to 18,586.29, 27,879.49 and 13,064.34 is: 19,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.29 : 27,879.49 = 13,064.34 : x
  2. Step 2: Convert to fraction form
    18,586.29/27,879.49 = 13,064.34/x
  3. Step 3: Cross multiply
    18,586.29x = 27,879.49 × 13,064.34
  4. Step 4: Simplify right side
    18,586.29x = 364,227,100.44
  5. Step 5: Solve for x
    x = 364,227,100.44/18,586.29
  6. Step 6: Final answer
    x = 19,596.54

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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.