Home / 11,661.20-17,446.44-10,680.56

Finding the Fourth Proportional to 11,661.20, 17,446.44 and 10,680.56

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Solution

The fourth proportional to 11,661.20, 17,446.44 and 10,680.56 is: 15,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.20 : 17,446.44 = 10,680.56 : x
  2. Step 2: Convert to fraction form
    11,661.20/17,446.44 = 10,680.56/x
  3. Step 3: Cross multiply
    11,661.20x = 17,446.44 × 10,680.56
  4. Step 4: Simplify right side
    11,661.20x = 186,337,749.21
  5. Step 5: Solve for x
    x = 186,337,749.21/11,661.20
  6. Step 6: Final answer
    x = 15,979.29

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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.