Home / 11,868.55-17,800.09-3,971.45

Finding the Fourth Proportional to 11,868.55, 17,800.09 and 3,971.45

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Solution

The fourth proportional to 11,868.55, 17,800.09 and 3,971.45 is: 5,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.55 : 17,800.09 = 3,971.45 : x
  2. Step 2: Convert to fraction form
    11,868.55/17,800.09 = 3,971.45/x
  3. Step 3: Cross multiply
    11,868.55x = 17,800.09 × 3,971.45
  4. Step 4: Simplify right side
    11,868.55x = 70,692,202.00
  5. Step 5: Solve for x
    x = 70,692,202.00/11,868.55
  6. Step 6: Final answer
    x = 5,956.26

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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.