Home / 11,885.85-17,816.40-3,982.41

Finding the Fourth Proportional to 11,885.85, 17,816.40 and 3,982.41

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Solution

The fourth proportional to 11,885.85, 17,816.40 and 3,982.41 is: 5,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.85 : 17,816.40 = 3,982.41 : x
  2. Step 2: Convert to fraction form
    11,885.85/17,816.40 = 3,982.41/x
  3. Step 3: Cross multiply
    11,885.85x = 17,816.40 × 3,982.41
  4. Step 4: Simplify right side
    11,885.85x = 70,952,209.52
  5. Step 5: Solve for x
    x = 70,952,209.52/11,885.85
  6. Step 6: Final answer
    x = 5,969.47

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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.