Home / 11,514.96-15,884.10-7,972.02

Finding the Fourth Proportional to 11,514.96, 15,884.10 and 7,972.02

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Solution

The fourth proportional to 11,514.96, 15,884.10 and 7,972.02 is: 10,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,514.96 : 15,884.10 = 7,972.02 : x
  2. Step 2: Convert to fraction form
    11,514.96/15,884.10 = 7,972.02/x
  3. Step 3: Cross multiply
    11,514.96x = 15,884.10 × 7,972.02
  4. Step 4: Simplify right side
    11,514.96x = 126,628,362.88
  5. Step 5: Solve for x
    x = 126,628,362.88/11,514.96
  6. Step 6: Final answer
    x = 10,996.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.