Home / 12,692.30-19,022.85-5,664.33

Finding the Fourth Proportional to 12,692.30, 19,022.85 and 5,664.33

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Solution

The fourth proportional to 12,692.30, 19,022.85 and 5,664.33 is: 8,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.30 : 19,022.85 = 5,664.33 : x
  2. Step 2: Convert to fraction form
    12,692.30/19,022.85 = 5,664.33/x
  3. Step 3: Cross multiply
    12,692.30x = 19,022.85 × 5,664.33
  4. Step 4: Simplify right side
    12,692.30x = 107,751,699.94
  5. Step 5: Solve for x
    x = 107,751,699.94/12,692.30
  6. Step 6: Final answer
    x = 8,489.54

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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.