Home / 13,187.64-19,786.62-5,786.94

Finding the Fourth Proportional to 13,187.64, 19,786.62 and 5,786.94

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Solution

The fourth proportional to 13,187.64, 19,786.62 and 5,786.94 is: 8,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.64 : 19,786.62 = 5,786.94 : x
  2. Step 2: Convert to fraction form
    13,187.64/19,786.62 = 5,786.94/x
  3. Step 3: Cross multiply
    13,187.64x = 19,786.62 × 5,786.94
  4. Step 4: Simplify right side
    13,187.64x = 114,503,982.74
  5. Step 5: Solve for x
    x = 114,503,982.74/13,187.64
  6. Step 6: Final answer
    x = 8,682.67

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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.