Home / 13,195.80-19,793.70-7,290.90

Finding the Fourth Proportional to 13,195.80, 19,793.70 and 7,290.90

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Solution

The fourth proportional to 13,195.80, 19,793.70 and 7,290.90 is: 10,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.80 : 19,793.70 = 7,290.90 : x
  2. Step 2: Convert to fraction form
    13,195.80/19,793.70 = 7,290.90/x
  3. Step 3: Cross multiply
    13,195.80x = 19,793.70 × 7,290.90
  4. Step 4: Simplify right side
    13,195.80x = 144,313,887.33
  5. Step 5: Solve for x
    x = 144,313,887.33/13,195.80
  6. Step 6: Final answer
    x = 10,936.35

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Similar ratio
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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.