Home / 6,396.18-8,826.87-3,877.80

Finding the Fourth Proportional to 6,396.18, 8,826.87 and 3,877.80

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Solution

The fourth proportional to 6,396.18, 8,826.87 and 3,877.80 is: 5,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.18 : 8,826.87 = 3,877.80 : x
  2. Step 2: Convert to fraction form
    6,396.18/8,826.87 = 3,877.80/x
  3. Step 3: Cross multiply
    6,396.18x = 8,826.87 × 3,877.80
  4. Step 4: Simplify right side
    6,396.18x = 34,228,836.49
  5. Step 5: Solve for x
    x = 34,228,836.49/6,396.18
  6. Step 6: Final answer
    x = 5,351.45

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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.