Home / 17,116.80-25,675.20-11,211.90

Finding the Fourth Proportional to 17,116.80, 25,675.20 and 11,211.90

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Solution

The fourth proportional to 17,116.80, 25,675.20 and 11,211.90 is: 16,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,116.80 : 25,675.20 = 11,211.90 : x
  2. Step 2: Convert to fraction form
    17,116.80/25,675.20 = 11,211.90/x
  3. Step 3: Cross multiply
    17,116.80x = 25,675.20 × 11,211.90
  4. Step 4: Simplify right side
    17,116.80x = 287,867,774.88
  5. Step 5: Solve for x
    x = 287,867,774.88/17,116.80
  6. Step 6: Final answer
    x = 16,817.85

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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.