Home / 11,778.80-17,668.48-3,459.04

Finding the Fourth Proportional to 11,778.80, 17,668.48 and 3,459.04

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Solution

The fourth proportional to 11,778.80, 17,668.48 and 3,459.04 is: 5,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.80 : 17,668.48 = 3,459.04 : x
  2. Step 2: Convert to fraction form
    11,778.80/17,668.48 = 3,459.04/x
  3. Step 3: Cross multiply
    11,778.80x = 17,668.48 × 3,459.04
  4. Step 4: Simplify right side
    11,778.80x = 61,115,979.06
  5. Step 5: Solve for x
    x = 61,115,979.06/11,778.80
  6. Step 6: Final answer
    x = 5,188.64

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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.