Home / 7,015.21-9,676.67-4,180.68

Finding the Fourth Proportional to 7,015.21, 9,676.67 and 4,180.68

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Solution

The fourth proportional to 7,015.21, 9,676.67 and 4,180.68 is: 5,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.21 : 9,676.67 = 4,180.68 : x
  2. Step 2: Convert to fraction form
    7,015.21/9,676.67 = 4,180.68/x
  3. Step 3: Cross multiply
    7,015.21x = 9,676.67 × 4,180.68
  4. Step 4: Simplify right side
    7,015.21x = 40,455,039.83
  5. Step 5: Solve for x
    x = 40,455,039.83/7,015.21
  6. Step 6: Final answer
    x = 5,766.76

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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.