Home / 8,185.12-12,277.24-2,638.34

Finding the Fourth Proportional to 8,185.12, 12,277.24 and 2,638.34

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Solution

The fourth proportional to 8,185.12, 12,277.24 and 2,638.34 is: 3,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.12 : 12,277.24 = 2,638.34 : x
  2. Step 2: Convert to fraction form
    8,185.12/12,277.24 = 2,638.34/x
  3. Step 3: Cross multiply
    8,185.12x = 12,277.24 × 2,638.34
  4. Step 4: Simplify right side
    8,185.12x = 32,391,511.44
  5. Step 5: Solve for x
    x = 32,391,511.44/8,185.12
  6. Step 6: Final answer
    x = 3,957.37

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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.