Home / 11,067.89-15,272.55-6,818.31

Finding the Fourth Proportional to 11,067.89, 15,272.55 and 6,818.31

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Solution

The fourth proportional to 11,067.89, 15,272.55 and 6,818.31 is: 9,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.89 : 15,272.55 = 6,818.31 : x
  2. Step 2: Convert to fraction form
    11,067.89/15,272.55 = 6,818.31/x
  3. Step 3: Cross multiply
    11,067.89x = 15,272.55 × 6,818.31
  4. Step 4: Simplify right side
    11,067.89x = 104,132,980.39
  5. Step 5: Solve for x
    x = 104,132,980.39/11,067.89
  6. Step 6: Final answer
    x = 9,408.57

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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.