Home / 6,819.12-10,182.96-6,778.44

Finding the Fourth Proportional to 6,819.12, 10,182.96 and 6,778.44

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Solution

The fourth proportional to 6,819.12, 10,182.96 and 6,778.44 is: 10,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.12 : 10,182.96 = 6,778.44 : x
  2. Step 2: Convert to fraction form
    6,819.12/10,182.96 = 6,778.44/x
  3. Step 3: Cross multiply
    6,819.12x = 10,182.96 × 6,778.44
  4. Step 4: Simplify right side
    6,819.12x = 69,024,583.38
  5. Step 5: Solve for x
    x = 69,024,583.38/6,819.12
  6. Step 6: Final answer
    x = 10,122.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.