Home / 15,756.07-21,743.82-8,682.94

Finding the Fourth Proportional to 15,756.07, 21,743.82 and 8,682.94

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Solution

The fourth proportional to 15,756.07, 21,743.82 and 8,682.94 is: 11,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.07 : 21,743.82 = 8,682.94 : x
  2. Step 2: Convert to fraction form
    15,756.07/21,743.82 = 8,682.94/x
  3. Step 3: Cross multiply
    15,756.07x = 21,743.82 × 8,682.94
  4. Step 4: Simplify right side
    15,756.07x = 188,800,284.43
  5. Step 5: Solve for x
    x = 188,800,284.43/15,756.07
  6. Step 6: Final answer
    x = 11,982.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.