Home / 11,990.80-16,546.53-6,685.30

Finding the Fourth Proportional to 11,990.80, 16,546.53 and 6,685.30

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Solution

The fourth proportional to 11,990.80, 16,546.53 and 6,685.30 is: 9,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.80 : 16,546.53 = 6,685.30 : x
  2. Step 2: Convert to fraction form
    11,990.80/16,546.53 = 6,685.30/x
  3. Step 3: Cross multiply
    11,990.80x = 16,546.53 × 6,685.30
  4. Step 4: Simplify right side
    11,990.80x = 110,618,517.01
  5. Step 5: Solve for x
    x = 110,618,517.01/11,990.80
  6. Step 6: Final answer
    x = 9,225.28

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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.