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Finding the Fourth Proportional to 11,086.88, 15,295.64 and 6,837.21

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Solution

The fourth proportional to 11,086.88, 15,295.64 and 6,837.21 is: 9,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.88 : 15,295.64 = 6,837.21 : x
  2. Step 2: Convert to fraction form
    11,086.88/15,295.64 = 6,837.21/x
  3. Step 3: Cross multiply
    11,086.88x = 15,295.64 × 6,837.21
  4. Step 4: Simplify right side
    11,086.88x = 104,579,468.58
  5. Step 5: Solve for x
    x = 104,579,468.58/11,086.88
  6. Step 6: Final answer
    x = 9,432.73

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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.