Home / 8,102.37-12,153.15-3,172.92

Finding the Fourth Proportional to 8,102.37, 12,153.15 and 3,172.92

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Solution

The fourth proportional to 8,102.37, 12,153.15 and 3,172.92 is: 4,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.37 : 12,153.15 = 3,172.92 : x
  2. Step 2: Convert to fraction form
    8,102.37/12,153.15 = 3,172.92/x
  3. Step 3: Cross multiply
    8,102.37x = 12,153.15 × 3,172.92
  4. Step 4: Simplify right side
    8,102.37x = 38,560,927.12
  5. Step 5: Solve for x
    x = 38,560,927.12/8,102.37
  6. Step 6: Final answer
    x = 4,759.21

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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.