Home / 12,692.92-19,105.56-11,485.48

Finding the Fourth Proportional to 12,692.92, 19,105.56 and 11,485.48

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Solution

The fourth proportional to 12,692.92, 19,105.56 and 11,485.48 is: 17,288.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.92 : 19,105.56 = 11,485.48 : x
  2. Step 2: Convert to fraction form
    12,692.92/19,105.56 = 11,485.48/x
  3. Step 3: Cross multiply
    12,692.92x = 19,105.56 × 11,485.48
  4. Step 4: Simplify right side
    12,692.92x = 219,436,527.27
  5. Step 5: Solve for x
    x = 219,436,527.27/12,692.92
  6. Step 6: Final answer
    x = 17,288.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.