Home / 12,176.10-18,271.35-4,383.90

Finding the Fourth Proportional to 12,176.10, 18,271.35 and 4,383.90

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Solution

The fourth proportional to 12,176.10, 18,271.35 and 4,383.90 is: 6,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.10 : 18,271.35 = 4,383.90 : x
  2. Step 2: Convert to fraction form
    12,176.10/18,271.35 = 4,383.90/x
  3. Step 3: Cross multiply
    12,176.10x = 18,271.35 × 4,383.90
  4. Step 4: Simplify right side
    12,176.10x = 80,099,771.27
  5. Step 5: Solve for x
    x = 80,099,771.27/12,176.10
  6. Step 6: Final answer
    x = 6,578.44

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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.