Home / 12,951.81-19,414.62-5,049.36

Finding the Fourth Proportional to 12,951.81, 19,414.62 and 5,049.36

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Solution

The fourth proportional to 12,951.81, 19,414.62 and 5,049.36 is: 7,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.81 : 19,414.62 = 5,049.36 : x
  2. Step 2: Convert to fraction form
    12,951.81/19,414.62 = 5,049.36/x
  3. Step 3: Cross multiply
    12,951.81x = 19,414.62 × 5,049.36
  4. Step 4: Simplify right side
    12,951.81x = 98,031,405.64
  5. Step 5: Solve for x
    x = 98,031,405.64/12,951.81
  6. Step 6: Final answer
    x = 7,568.93

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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.