Home / 8,621.06-12,933.46-2,778.14

Finding the Fourth Proportional to 8,621.06, 12,933.46 and 2,778.14

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Solution

The fourth proportional to 8,621.06, 12,933.46 and 2,778.14 is: 4,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.06 : 12,933.46 = 2,778.14 : x
  2. Step 2: Convert to fraction form
    8,621.06/12,933.46 = 2,778.14/x
  3. Step 3: Cross multiply
    8,621.06x = 12,933.46 × 2,778.14
  4. Step 4: Simplify right side
    8,621.06x = 35,930,962.56
  5. Step 5: Solve for x
    x = 35,930,962.56/8,621.06
  6. Step 6: Final answer
    x = 4,167.81

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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.