Home / 13,986.42-20,969.91-6,584.64

Finding the Fourth Proportional to 13,986.42, 20,969.91 and 6,584.64

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Solution

The fourth proportional to 13,986.42, 20,969.91 and 6,584.64 is: 9,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.42 : 20,969.91 = 6,584.64 : x
  2. Step 2: Convert to fraction form
    13,986.42/20,969.91 = 6,584.64/x
  3. Step 3: Cross multiply
    13,986.42x = 20,969.91 × 6,584.64
  4. Step 4: Simplify right side
    13,986.42x = 138,079,308.18
  5. Step 5: Solve for x
    x = 138,079,308.18/13,986.42
  6. Step 6: Final answer
    x = 9,872.38

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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.