Home / 12,708.82-19,065.78-4,389.14

Finding the Fourth Proportional to 12,708.82, 19,065.78 and 4,389.14

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Solution

The fourth proportional to 12,708.82, 19,065.78 and 4,389.14 is: 6,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.82 : 19,065.78 = 4,389.14 : x
  2. Step 2: Convert to fraction form
    12,708.82/19,065.78 = 4,389.14/x
  3. Step 3: Cross multiply
    12,708.82x = 19,065.78 × 4,389.14
  4. Step 4: Simplify right side
    12,708.82x = 83,682,425.29
  5. Step 5: Solve for x
    x = 83,682,425.29/12,708.82
  6. Step 6: Final answer
    x = 6,584.59

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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.