Home / 11,984.72-16,540.08-6,681.44

Finding the Fourth Proportional to 11,984.72, 16,540.08 and 6,681.44

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Solution

The fourth proportional to 11,984.72, 16,540.08 and 6,681.44 is: 9,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.72 : 16,540.08 = 6,681.44 : x
  2. Step 2: Convert to fraction form
    11,984.72/16,540.08 = 6,681.44/x
  3. Step 3: Cross multiply
    11,984.72x = 16,540.08 × 6,681.44
  4. Step 4: Simplify right side
    11,984.72x = 110,511,552.12
  5. Step 5: Solve for x
    x = 110,511,552.12/11,984.72
  6. Step 6: Final answer
    x = 9,221.04

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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.