Home / 13,884.91-20,827.76-5,451.06

Finding the Fourth Proportional to 13,884.91, 20,827.76 and 5,451.06

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Solution

The fourth proportional to 13,884.91, 20,827.76 and 5,451.06 is: 8,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.91 : 20,827.76 = 5,451.06 : x
  2. Step 2: Convert to fraction form
    13,884.91/20,827.76 = 5,451.06/x
  3. Step 3: Cross multiply
    13,884.91x = 20,827.76 × 5,451.06
  4. Step 4: Simplify right side
    13,884.91x = 113,533,369.43
  5. Step 5: Solve for x
    x = 113,533,369.43/13,884.91
  6. Step 6: Final answer
    x = 8,176.75

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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.