Home / 11,926.80-17,890.20-3,608.10

Finding the Fourth Proportional to 11,926.80, 17,890.20 and 3,608.10

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Solution

The fourth proportional to 11,926.80, 17,890.20 and 3,608.10 is: 5,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.80 : 17,890.20 = 3,608.10 : x
  2. Step 2: Convert to fraction form
    11,926.80/17,890.20 = 3,608.10/x
  3. Step 3: Cross multiply
    11,926.80x = 17,890.20 × 3,608.10
  4. Step 4: Simplify right side
    11,926.80x = 64,549,630.62
  5. Step 5: Solve for x
    x = 64,549,630.62/11,926.80
  6. Step 6: Final answer
    x = 5,412.15

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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.