Home / 13,951.28-20,935.14-5,192.30

Finding the Fourth Proportional to 13,951.28, 20,935.14 and 5,192.30

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Solution

The fourth proportional to 13,951.28, 20,935.14 and 5,192.30 is: 7,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.28 : 20,935.14 = 5,192.30 : x
  2. Step 2: Convert to fraction form
    13,951.28/20,935.14 = 5,192.30/x
  3. Step 3: Cross multiply
    13,951.28x = 20,935.14 × 5,192.30
  4. Step 4: Simplify right side
    13,951.28x = 108,701,527.42
  5. Step 5: Solve for x
    x = 108,701,527.42/13,951.28
  6. Step 6: Final answer
    x = 7,791.51

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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.