Home / 12,743.03-19,106.78-5,721.68

Finding the Fourth Proportional to 12,743.03, 19,106.78 and 5,721.68

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Solution

The fourth proportional to 12,743.03, 19,106.78 and 5,721.68 is: 8,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.03 : 19,106.78 = 5,721.68 : x
  2. Step 2: Convert to fraction form
    12,743.03/19,106.78 = 5,721.68/x
  3. Step 3: Cross multiply
    12,743.03x = 19,106.78 × 5,721.68
  4. Step 4: Simplify right side
    12,743.03x = 109,322,756.85
  5. Step 5: Solve for x
    x = 109,322,756.85/12,743.03
  6. Step 6: Final answer
    x = 8,579.03

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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.