Home / 8,647.20-12,975.04-3,100.98

Finding the Fourth Proportional to 8,647.20, 12,975.04 and 3,100.98

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Solution

The fourth proportional to 8,647.20, 12,975.04 and 3,100.98 is: 4,652.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.20 : 12,975.04 = 3,100.98 : x
  2. Step 2: Convert to fraction form
    8,647.20/12,975.04 = 3,100.98/x
  3. Step 3: Cross multiply
    8,647.20x = 12,975.04 × 3,100.98
  4. Step 4: Simplify right side
    8,647.20x = 40,235,339.54
  5. Step 5: Solve for x
    x = 40,235,339.54/8,647.20
  6. Step 6: Final answer
    x = 4,652.99

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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.