Home / 11,990.48-16,546.32-6,685.88

Finding the Fourth Proportional to 11,990.48, 16,546.32 and 6,685.88

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Solution

The fourth proportional to 11,990.48, 16,546.32 and 6,685.88 is: 9,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.48 : 16,546.32 = 6,685.88 : x
  2. Step 2: Convert to fraction form
    11,990.48/16,546.32 = 6,685.88/x
  3. Step 3: Cross multiply
    11,990.48x = 16,546.32 × 6,685.88
  4. Step 4: Simplify right side
    11,990.48x = 110,626,709.96
  5. Step 5: Solve for x
    x = 110,626,709.96/11,990.48
  6. Step 6: Final answer
    x = 9,226.21

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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.