Home / 7,847.20-11,813.56-6,775.84

Finding the Fourth Proportional to 7,847.20, 11,813.56 and 6,775.84

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Solution

The fourth proportional to 7,847.20, 11,813.56 and 6,775.84 is: 10,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.20 : 11,813.56 = 6,775.84 : x
  2. Step 2: Convert to fraction form
    7,847.20/11,813.56 = 6,775.84/x
  3. Step 3: Cross multiply
    7,847.20x = 11,813.56 × 6,775.84
  4. Step 4: Simplify right side
    7,847.20x = 80,046,792.39
  5. Step 5: Solve for x
    x = 80,046,792.39/7,847.20
  6. Step 6: Final answer
    x = 10,200.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.