Home / 11,144.51-15,379.03-6,108.61

Finding the Fourth Proportional to 11,144.51, 15,379.03 and 6,108.61

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Solution

The fourth proportional to 11,144.51, 15,379.03 and 6,108.61 is: 8,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.51 : 15,379.03 = 6,108.61 : x
  2. Step 2: Convert to fraction form
    11,144.51/15,379.03 = 6,108.61/x
  3. Step 3: Cross multiply
    11,144.51x = 15,379.03 × 6,108.61
  4. Step 4: Simplify right side
    11,144.51x = 93,944,496.45
  5. Step 5: Solve for x
    x = 93,944,496.45/11,144.51
  6. Step 6: Final answer
    x = 8,429.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.