Home / 11,938.08-17,905.86-3,173.88

Finding the Fourth Proportional to 11,938.08, 17,905.86 and 3,173.88

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Solution

The fourth proportional to 11,938.08, 17,905.86 and 3,173.88 is: 4,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.08 : 17,905.86 = 3,173.88 : x
  2. Step 2: Convert to fraction form
    11,938.08/17,905.86 = 3,173.88/x
  3. Step 3: Cross multiply
    11,938.08x = 17,905.86 × 3,173.88
  4. Step 4: Simplify right side
    11,938.08x = 56,831,050.94
  5. Step 5: Solve for x
    x = 56,831,050.94/11,938.08
  6. Step 6: Final answer
    x = 4,760.49

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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.