Home / 7,787.87-11,683.56-4,091.84

Finding the Fourth Proportional to 7,787.87, 11,683.56 and 4,091.84

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Solution

The fourth proportional to 7,787.87, 11,683.56 and 4,091.84 is: 6,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.87 : 11,683.56 = 4,091.84 : x
  2. Step 2: Convert to fraction form
    7,787.87/11,683.56 = 4,091.84/x
  3. Step 3: Cross multiply
    7,787.87x = 11,683.56 × 4,091.84
  4. Step 4: Simplify right side
    7,787.87x = 47,807,258.15
  5. Step 5: Solve for x
    x = 47,807,258.15/7,787.87
  6. Step 6: Final answer
    x = 6,138.68

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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.