Home / 8,676.05-13,012.13-3,991.56

Finding the Fourth Proportional to 8,676.05, 13,012.13 and 3,991.56

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Solution

The fourth proportional to 8,676.05, 13,012.13 and 3,991.56 is: 5,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.05 : 13,012.13 = 3,991.56 : x
  2. Step 2: Convert to fraction form
    8,676.05/13,012.13 = 3,991.56/x
  3. Step 3: Cross multiply
    8,676.05x = 13,012.13 × 3,991.56
  4. Step 4: Simplify right side
    8,676.05x = 51,938,697.62
  5. Step 5: Solve for x
    x = 51,938,697.62/8,676.05
  6. Step 6: Final answer
    x = 5,986.45

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1.5x scale

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.