Home / 11,001.21-15,181.97-6,221.33

Finding the Fourth Proportional to 11,001.21, 15,181.97 and 6,221.33

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Solution

The fourth proportional to 11,001.21, 15,181.97 and 6,221.33 is: 8,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.21 : 15,181.97 = 6,221.33 : x
  2. Step 2: Convert to fraction form
    11,001.21/15,181.97 = 6,221.33/x
  3. Step 3: Cross multiply
    11,001.21x = 15,181.97 × 6,221.33
  4. Step 4: Simplify right side
    11,001.21x = 94,451,938.40
  5. Step 5: Solve for x
    x = 94,451,938.40/11,001.21
  6. Step 6: Final answer
    x = 8,585.60

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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.