Home / 18,961.80-28,466.10-11,941.80

Finding the Fourth Proportional to 18,961.80, 28,466.10 and 11,941.80

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Solution

The fourth proportional to 18,961.80, 28,466.10 and 11,941.80 is: 17,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.80 : 28,466.10 = 11,941.80 : x
  2. Step 2: Convert to fraction form
    18,961.80/28,466.10 = 11,941.80/x
  3. Step 3: Cross multiply
    18,961.80x = 28,466.10 × 11,941.80
  4. Step 4: Simplify right side
    18,961.80x = 339,936,472.98
  5. Step 5: Solve for x
    x = 339,936,472.98/18,961.80
  6. Step 6: Final answer
    x = 17,927.44

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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.