Home / 9,906.40-14,858.70-3,331.72

Finding the Fourth Proportional to 9,906.40, 14,858.70 and 3,331.72

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Solution

The fourth proportional to 9,906.40, 14,858.70 and 3,331.72 is: 4,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.40 : 14,858.70 = 3,331.72 : x
  2. Step 2: Convert to fraction form
    9,906.40/14,858.70 = 3,331.72/x
  3. Step 3: Cross multiply
    9,906.40x = 14,858.70 × 3,331.72
  4. Step 4: Simplify right side
    9,906.40x = 49,505,027.96
  5. Step 5: Solve for x
    x = 49,505,027.96/9,906.40
  6. Step 6: Final answer
    x = 4,997.28

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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.