Home / 11,990.31-16,546.83-6,613.36

Finding the Fourth Proportional to 11,990.31, 16,546.83 and 6,613.36

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Solution

The fourth proportional to 11,990.31, 16,546.83 and 6,613.36 is: 9,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.31 : 16,546.83 = 6,613.36 : x
  2. Step 2: Convert to fraction form
    11,990.31/16,546.83 = 6,613.36/x
  3. Step 3: Cross multiply
    11,990.31x = 16,546.83 × 6,613.36
  4. Step 4: Simplify right side
    11,990.31x = 109,430,164.33
  5. Step 5: Solve for x
    x = 109,430,164.33/11,990.31
  6. Step 6: Final answer
    x = 9,126.55

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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.