Home / 6,819.43-9,408.55-5,558.31

Finding the Fourth Proportional to 6,819.43, 9,408.55 and 5,558.31

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Solution

The fourth proportional to 6,819.43, 9,408.55 and 5,558.31 is: 7,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.43 : 9,408.55 = 5,558.31 : x
  2. Step 2: Convert to fraction form
    6,819.43/9,408.55 = 5,558.31/x
  3. Step 3: Cross multiply
    6,819.43x = 9,408.55 × 5,558.31
  4. Step 4: Simplify right side
    6,819.43x = 52,295,636.75
  5. Step 5: Solve for x
    x = 52,295,636.75/6,819.43
  6. Step 6: Final answer
    x = 7,668.63

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1.5x scale

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.