Home / 13,197.78-19,791.70-4,311.04

Finding the Fourth Proportional to 13,197.78, 19,791.70 and 4,311.04

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Solution

The fourth proportional to 13,197.78, 19,791.70 and 4,311.04 is: 6,464.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.78 : 19,791.70 = 4,311.04 : x
  2. Step 2: Convert to fraction form
    13,197.78/19,791.70 = 4,311.04/x
  3. Step 3: Cross multiply
    13,197.78x = 19,791.70 × 4,311.04
  4. Step 4: Simplify right side
    13,197.78x = 85,322,810.37
  5. Step 5: Solve for x
    x = 85,322,810.37/13,197.78
  6. Step 6: Final answer
    x = 6,464.94

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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.