Home / 11,985.84-16,540.22-6,680.56

Finding the Fourth Proportional to 11,985.84, 16,540.22 and 6,680.56

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Solution

The fourth proportional to 11,985.84, 16,540.22 and 6,680.56 is: 9,219.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.84 : 16,540.22 = 6,680.56 : x
  2. Step 2: Convert to fraction form
    11,985.84/16,540.22 = 6,680.56/x
  3. Step 3: Cross multiply
    11,985.84x = 16,540.22 × 6,680.56
  4. Step 4: Simplify right side
    11,985.84x = 110,497,932.12
  5. Step 5: Solve for x
    x = 110,497,932.12/11,985.84
  6. Step 6: Final answer
    x = 9,219.04

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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.