Home / 11,769.80-17,739.32-10,145.96

Finding the Fourth Proportional to 11,769.80, 17,739.32 and 10,145.96

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Solution

The fourth proportional to 11,769.80, 17,739.32 and 10,145.96 is: 15,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.80 : 17,739.32 = 10,145.96 : x
  2. Step 2: Convert to fraction form
    11,769.80/17,739.32 = 10,145.96/x
  3. Step 3: Cross multiply
    11,769.80x = 17,739.32 × 10,145.96
  4. Step 4: Simplify right side
    11,769.80x = 179,982,431.15
  5. Step 5: Solve for x
    x = 179,982,431.15/11,769.80
  6. Step 6: Final answer
    x = 15,291.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.