Home / 13,164.72-19,739.78-4,394.85

Finding the Fourth Proportional to 13,164.72, 19,739.78 and 4,394.85

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Solution

The fourth proportional to 13,164.72, 19,739.78 and 4,394.85 is: 6,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.72 : 19,739.78 = 4,394.85 : x
  2. Step 2: Convert to fraction form
    13,164.72/19,739.78 = 4,394.85/x
  3. Step 3: Cross multiply
    13,164.72x = 19,739.78 × 4,394.85
  4. Step 4: Simplify right side
    13,164.72x = 86,753,372.13
  5. Step 5: Solve for x
    x = 86,753,372.13/13,164.72
  6. Step 6: Final answer
    x = 6,589.84

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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.