Home / 8,621.28-12,933.81-2,777.94

Finding the Fourth Proportional to 8,621.28, 12,933.81 and 2,777.94

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Solution

The fourth proportional to 8,621.28, 12,933.81 and 2,777.94 is: 4,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.28 : 12,933.81 = 2,777.94 : x
  2. Step 2: Convert to fraction form
    8,621.28/12,933.81 = 2,777.94/x
  3. Step 3: Cross multiply
    8,621.28x = 12,933.81 × 2,777.94
  4. Step 4: Simplify right side
    8,621.28x = 35,929,348.15
  5. Step 5: Solve for x
    x = 35,929,348.15/8,621.28
  6. Step 6: Final answer
    x = 4,167.52

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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.