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Finding the Fourth Proportional to 8,088.85, 12,128.24 and 3,406.44

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Solution

The fourth proportional to 8,088.85, 12,128.24 and 3,406.44 is: 5,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.85 : 12,128.24 = 3,406.44 : x
  2. Step 2: Convert to fraction form
    8,088.85/12,128.24 = 3,406.44/x
  3. Step 3: Cross multiply
    8,088.85x = 12,128.24 × 3,406.44
  4. Step 4: Simplify right side
    8,088.85x = 41,314,175.86
  5. Step 5: Solve for x
    x = 41,314,175.86/8,088.85
  6. Step 6: Final answer
    x = 5,107.55

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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.