Home / 11,982.28-16,536.42-6,947.80

Finding the Fourth Proportional to 11,982.28, 16,536.42 and 6,947.80

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Solution

The fourth proportional to 11,982.28, 16,536.42 and 6,947.80 is: 9,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.28 : 16,536.42 = 6,947.80 : x
  2. Step 2: Convert to fraction form
    11,982.28/16,536.42 = 6,947.80/x
  3. Step 3: Cross multiply
    11,982.28x = 16,536.42 × 6,947.80
  4. Step 4: Simplify right side
    11,982.28x = 114,891,738.88
  5. Step 5: Solve for x
    x = 114,891,738.88/11,982.28
  6. Step 6: Final answer
    x = 9,588.47

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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.