Home / 11,938.60-17,906.46-3,174.18

Finding the Fourth Proportional to 11,938.60, 17,906.46 and 3,174.18

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Solution

The fourth proportional to 11,938.60, 17,906.46 and 3,174.18 is: 4,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.60 : 17,906.46 = 3,174.18 : x
  2. Step 2: Convert to fraction form
    11,938.60/17,906.46 = 3,174.18/x
  3. Step 3: Cross multiply
    11,938.60x = 17,906.46 × 3,174.18
  4. Step 4: Simplify right side
    11,938.60x = 56,838,327.20
  5. Step 5: Solve for x
    x = 56,838,327.20/11,938.60
  6. Step 6: Final answer
    x = 4,760.89

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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.