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Finding the Fourth Proportional to 9,331.74, 13,998.42 and 3,090.42

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Solution

The fourth proportional to 9,331.74, 13,998.42 and 3,090.42 is: 4,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.74 : 13,998.42 = 3,090.42 : x
  2. Step 2: Convert to fraction form
    9,331.74/13,998.42 = 3,090.42/x
  3. Step 3: Cross multiply
    9,331.74x = 13,998.42 × 3,090.42
  4. Step 4: Simplify right side
    9,331.74x = 43,260,997.14
  5. Step 5: Solve for x
    x = 43,260,997.14/9,331.74
  6. Step 6: Final answer
    x = 4,635.90

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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.