Home / 8,647.44-12,972.98-2,803.60

Finding the Fourth Proportional to 8,647.44, 12,972.98 and 2,803.60

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Solution

The fourth proportional to 8,647.44, 12,972.98 and 2,803.60 is: 4,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.44 : 12,972.98 = 2,803.60 : x
  2. Step 2: Convert to fraction form
    8,647.44/12,972.98 = 2,803.60/x
  3. Step 3: Cross multiply
    8,647.44x = 12,972.98 × 2,803.60
  4. Step 4: Simplify right side
    8,647.44x = 36,370,988.87
  5. Step 5: Solve for x
    x = 36,370,988.87/8,647.44
  6. Step 6: Final answer
    x = 4,205.98

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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.