Home / 12,271.04-18,408.80-4,485.44

Finding the Fourth Proportional to 12,271.04, 18,408.80 and 4,485.44

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Solution

The fourth proportional to 12,271.04, 18,408.80 and 4,485.44 is: 6,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.04 : 18,408.80 = 4,485.44 : x
  2. Step 2: Convert to fraction form
    12,271.04/18,408.80 = 4,485.44/x
  3. Step 3: Cross multiply
    12,271.04x = 18,408.80 × 4,485.44
  4. Step 4: Simplify right side
    12,271.04x = 82,571,567.87
  5. Step 5: Solve for x
    x = 82,571,567.87/12,271.04
  6. Step 6: Final answer
    x = 6,728.98

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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.