Home / 13,516.88-20,274.88-6,121.36

Finding the Fourth Proportional to 13,516.88, 20,274.88 and 6,121.36

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Solution

The fourth proportional to 13,516.88, 20,274.88 and 6,121.36 is: 9,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.88 : 20,274.88 = 6,121.36 : x
  2. Step 2: Convert to fraction form
    13,516.88/20,274.88 = 6,121.36/x
  3. Step 3: Cross multiply
    13,516.88x = 20,274.88 × 6,121.36
  4. Step 4: Simplify right side
    13,516.88x = 124,109,839.44
  5. Step 5: Solve for x
    x = 124,109,839.44/13,516.88
  6. Step 6: Final answer
    x = 9,181.84

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1.5x scale

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.