Home / 19,137.75-28,692.05-12,899.33

Finding the Fourth Proportional to 19,137.75, 28,692.05 and 12,899.33

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Solution

The fourth proportional to 19,137.75, 28,692.05 and 12,899.33 is: 19,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,137.75 : 28,692.05 = 12,899.33 : x
  2. Step 2: Convert to fraction form
    19,137.75/28,692.05 = 12,899.33/x
  3. Step 3: Cross multiply
    19,137.75x = 28,692.05 × 12,899.33
  4. Step 4: Simplify right side
    19,137.75x = 370,108,228.56
  5. Step 5: Solve for x
    x = 370,108,228.56/19,137.75
  6. Step 6: Final answer
    x = 19,339.17

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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.