Home / 13,786.05-20,685.91-5,465.88

Finding the Fourth Proportional to 13,786.05, 20,685.91 and 5,465.88

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Solution

The fourth proportional to 13,786.05, 20,685.91 and 5,465.88 is: 8,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.05 : 20,685.91 = 5,465.88 : x
  2. Step 2: Convert to fraction form
    13,786.05/20,685.91 = 5,465.88/x
  3. Step 3: Cross multiply
    13,786.05x = 20,685.91 × 5,465.88
  4. Step 4: Simplify right side
    13,786.05x = 113,066,701.75
  5. Step 5: Solve for x
    x = 113,066,701.75/13,786.05
  6. Step 6: Final answer
    x = 8,201.53

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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.