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Finding the Fourth Proportional to 11,445.78, 15,795.44 and 8,094.61

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Solution

The fourth proportional to 11,445.78, 15,795.44 and 8,094.61 is: 11,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.78 : 15,795.44 = 8,094.61 : x
  2. Step 2: Convert to fraction form
    11,445.78/15,795.44 = 8,094.61/x
  3. Step 3: Cross multiply
    11,445.78x = 15,795.44 × 8,094.61
  4. Step 4: Simplify right side
    11,445.78x = 127,857,926.58
  5. Step 5: Solve for x
    x = 127,857,926.58/11,445.78
  6. Step 6: Final answer
    x = 11,170.75

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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.