Home / 8,172.47-12,250.60-3,239.03

Finding the Fourth Proportional to 8,172.47, 12,250.60 and 3,239.03

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Solution

The fourth proportional to 8,172.47, 12,250.60 and 3,239.03 is: 4,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.47 : 12,250.60 = 3,239.03 : x
  2. Step 2: Convert to fraction form
    8,172.47/12,250.60 = 3,239.03/x
  3. Step 3: Cross multiply
    8,172.47x = 12,250.60 × 3,239.03
  4. Step 4: Simplify right side
    8,172.47x = 39,680,060.92
  5. Step 5: Solve for x
    x = 39,680,060.92/8,172.47
  6. Step 6: Final answer
    x = 4,855.33

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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.