Home / 8,676.22-11,970.38-5,315.54

Finding the Fourth Proportional to 8,676.22, 11,970.38 and 5,315.54

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Solution

The fourth proportional to 8,676.22, 11,970.38 and 5,315.54 is: 7,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.22 : 11,970.38 = 5,315.54 : x
  2. Step 2: Convert to fraction form
    8,676.22/11,970.38 = 5,315.54/x
  3. Step 3: Cross multiply
    8,676.22x = 11,970.38 × 5,315.54
  4. Step 4: Simplify right side
    8,676.22x = 63,629,033.71
  5. Step 5: Solve for x
    x = 63,629,033.71/8,676.22
  6. Step 6: Final answer
    x = 7,333.73

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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.