Home / 18,065.30-27,108.75-6,388.34

Finding the Fourth Proportional to 18,065.30, 27,108.75 and 6,388.34

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Solution

The fourth proportional to 18,065.30, 27,108.75 and 6,388.34 is: 9,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.30 : 27,108.75 = 6,388.34 : x
  2. Step 2: Convert to fraction form
    18,065.30/27,108.75 = 6,388.34/x
  3. Step 3: Cross multiply
    18,065.30x = 27,108.75 × 6,388.34
  4. Step 4: Simplify right side
    18,065.30x = 173,179,911.98
  5. Step 5: Solve for x
    x = 173,179,911.98/18,065.30
  6. Step 6: Final answer
    x = 9,586.33

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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.