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Finding the Fourth Proportional to 11,290.78, 16,940.16 and 5,050.24

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Solution

The fourth proportional to 11,290.78, 16,940.16 and 5,050.24 is: 7,577.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.78 : 16,940.16 = 5,050.24 : x
  2. Step 2: Convert to fraction form
    11,290.78/16,940.16 = 5,050.24/x
  3. Step 3: Cross multiply
    11,290.78x = 16,940.16 × 5,050.24
  4. Step 4: Simplify right side
    11,290.78x = 85,551,873.64
  5. Step 5: Solve for x
    x = 85,551,873.64/11,290.78
  6. Step 6: Final answer
    x = 7,577.14

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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.