Home / 11,781.98-17,668.64-3,459.86

Finding the Fourth Proportional to 11,781.98, 17,668.64 and 3,459.86

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Solution

The fourth proportional to 11,781.98, 17,668.64 and 3,459.86 is: 5,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.98 : 17,668.64 = 3,459.86 : x
  2. Step 2: Convert to fraction form
    11,781.98/17,668.64 = 3,459.86/x
  3. Step 3: Cross multiply
    11,781.98x = 17,668.64 × 3,459.86
  4. Step 4: Simplify right side
    11,781.98x = 61,131,020.79
  5. Step 5: Solve for x
    x = 61,131,020.79/11,781.98
  6. Step 6: Final answer
    x = 5,188.52

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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.