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Finding the Fourth Proportional to 7,787.67, 10,747.04 and 4,250.67

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Solution

The fourth proportional to 7,787.67, 10,747.04 and 4,250.67 is: 5,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.67 : 10,747.04 = 4,250.67 : x
  2. Step 2: Convert to fraction form
    7,787.67/10,747.04 = 4,250.67/x
  3. Step 3: Cross multiply
    7,787.67x = 10,747.04 × 4,250.67
  4. Step 4: Simplify right side
    7,787.67x = 45,682,120.52
  5. Step 5: Solve for x
    x = 45,682,120.52/7,787.67
  6. Step 6: Final answer
    x = 5,865.95

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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.