Home / 8,084.50-12,120.18-3,638.90

Finding the Fourth Proportional to 8,084.50, 12,120.18 and 3,638.90

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Solution

The fourth proportional to 8,084.50, 12,120.18 and 3,638.90 is: 5,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.50 : 12,120.18 = 3,638.90 : x
  2. Step 2: Convert to fraction form
    8,084.50/12,120.18 = 3,638.90/x
  3. Step 3: Cross multiply
    8,084.50x = 12,120.18 × 3,638.90
  4. Step 4: Simplify right side
    8,084.50x = 44,104,123.00
  5. Step 5: Solve for x
    x = 44,104,123.00/8,084.50
  6. Step 6: Final answer
    x = 5,455.39

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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.