Home / 11,769.13-17,655.87-3,872.08

Finding the Fourth Proportional to 11,769.13, 17,655.87 and 3,872.08

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Solution

The fourth proportional to 11,769.13, 17,655.87 and 3,872.08 is: 5,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.13 : 17,655.87 = 3,872.08 : x
  2. Step 2: Convert to fraction form
    11,769.13/17,655.87 = 3,872.08/x
  3. Step 3: Cross multiply
    11,769.13x = 17,655.87 × 3,872.08
  4. Step 4: Simplify right side
    11,769.13x = 68,364,852.83
  5. Step 5: Solve for x
    x = 68,364,852.83/11,769.13
  6. Step 6: Final answer
    x = 5,808.83

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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.