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Finding the Fourth Proportional to 8,463.48, 12,696.80 and 3,783.67

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Solution

The fourth proportional to 8,463.48, 12,696.80 and 3,783.67 is: 5,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.48 : 12,696.80 = 3,783.67 : x
  2. Step 2: Convert to fraction form
    8,463.48/12,696.80 = 3,783.67/x
  3. Step 3: Cross multiply
    8,463.48x = 12,696.80 × 3,783.67
  4. Step 4: Simplify right side
    8,463.48x = 48,040,507.59
  5. Step 5: Solve for x
    x = 48,040,507.59/8,463.48
  6. Step 6: Final answer
    x = 5,676.21

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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.