Home / 11,377.80-17,069.12-3,982.50

Finding the Fourth Proportional to 11,377.80, 17,069.12 and 3,982.50

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Solution

The fourth proportional to 11,377.80, 17,069.12 and 3,982.50 is: 5,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,377.80 : 17,069.12 = 3,982.50 : x
  2. Step 2: Convert to fraction form
    11,377.80/17,069.12 = 3,982.50/x
  3. Step 3: Cross multiply
    11,377.80x = 17,069.12 × 3,982.50
  4. Step 4: Simplify right side
    11,377.80x = 67,977,770.40
  5. Step 5: Solve for x
    x = 67,977,770.40/11,377.80
  6. Step 6: Final answer
    x = 5,974.60

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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.