Home / 13,191.36-19,789.92-4,426.04

Finding the Fourth Proportional to 13,191.36, 19,789.92 and 4,426.04

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Solution

The fourth proportional to 13,191.36, 19,789.92 and 4,426.04 is: 6,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.36 : 19,789.92 = 4,426.04 : x
  2. Step 2: Convert to fraction form
    13,191.36/19,789.92 = 4,426.04/x
  3. Step 3: Cross multiply
    13,191.36x = 19,789.92 × 4,426.04
  4. Step 4: Simplify right side
    13,191.36x = 87,591,026.99
  5. Step 5: Solve for x
    x = 87,591,026.99/13,191.36
  6. Step 6: Final answer
    x = 6,640.03

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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.