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Finding the Fourth Proportional to 8,922.78, 13,388.16 and 3,995.46

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Solution

The fourth proportional to 8,922.78, 13,388.16 and 3,995.46 is: 5,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.78 : 13,388.16 = 3,995.46 : x
  2. Step 2: Convert to fraction form
    8,922.78/13,388.16 = 3,995.46/x
  3. Step 3: Cross multiply
    8,922.78x = 13,388.16 × 3,995.46
  4. Step 4: Simplify right side
    8,922.78x = 53,491,857.75
  5. Step 5: Solve for x
    x = 53,491,857.75/8,922.78
  6. Step 6: Final answer
    x = 5,994.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.