Home / 12,771.45-19,157.67-4,452.31

Finding the Fourth Proportional to 12,771.45, 19,157.67 and 4,452.31

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Solution

The fourth proportional to 12,771.45, 19,157.67 and 4,452.31 is: 6,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.45 : 19,157.67 = 4,452.31 : x
  2. Step 2: Convert to fraction form
    12,771.45/19,157.67 = 4,452.31/x
  3. Step 3: Cross multiply
    12,771.45x = 19,157.67 × 4,452.31
  4. Step 4: Simplify right side
    12,771.45x = 85,295,885.72
  5. Step 5: Solve for x
    x = 85,295,885.72/12,771.45
  6. Step 6: Final answer
    x = 6,678.64

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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.