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Finding the Fourth Proportional to 8,168.56, 12,248.36 and 3,783.60

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Solution

The fourth proportional to 8,168.56, 12,248.36 and 3,783.60 is: 5,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.56 : 12,248.36 = 3,783.60 : x
  2. Step 2: Convert to fraction form
    8,168.56/12,248.36 = 3,783.60/x
  3. Step 3: Cross multiply
    8,168.56x = 12,248.36 × 3,783.60
  4. Step 4: Simplify right side
    8,168.56x = 46,342,894.90
  5. Step 5: Solve for x
    x = 46,342,894.90/8,168.56
  6. Step 6: Final answer
    x = 5,673.32

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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.