Home / 13,338.39-20,020.14-6,769.29

Finding the Fourth Proportional to 13,338.39, 20,020.14 and 6,769.29

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Solution

The fourth proportional to 13,338.39, 20,020.14 and 6,769.29 is: 10,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.39 : 20,020.14 = 6,769.29 : x
  2. Step 2: Convert to fraction form
    13,338.39/20,020.14 = 6,769.29/x
  3. Step 3: Cross multiply
    13,338.39x = 20,020.14 × 6,769.29
  4. Step 4: Simplify right side
    13,338.39x = 135,522,133.50
  5. Step 5: Solve for x
    x = 135,522,133.50/13,338.39
  6. Step 6: Final answer
    x = 10,160.31

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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.