Home / 11,971.88-17,929.98-11,556.60

Finding the Fourth Proportional to 11,971.88, 17,929.98 and 11,556.60

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Solution

The fourth proportional to 11,971.88, 17,929.98 and 11,556.60 is: 17,308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.88 : 17,929.98 = 11,556.60 : x
  2. Step 2: Convert to fraction form
    11,971.88/17,929.98 = 11,556.60/x
  3. Step 3: Cross multiply
    11,971.88x = 17,929.98 × 11,556.60
  4. Step 4: Simplify right side
    11,971.88x = 207,209,606.87
  5. Step 5: Solve for x
    x = 207,209,606.87/11,971.88
  6. Step 6: Final answer
    x = 17,308.03

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1.5x scale

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.