Home / 12,692.04-18,996.64-11,479.56

Finding the Fourth Proportional to 12,692.04, 18,996.64 and 11,479.56

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Solution

The fourth proportional to 12,692.04, 18,996.64 and 11,479.56 is: 17,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.04 : 18,996.64 = 11,479.56 : x
  2. Step 2: Convert to fraction form
    12,692.04/18,996.64 = 11,479.56/x
  3. Step 3: Cross multiply
    12,692.04x = 18,996.64 × 11,479.56
  4. Step 4: Simplify right side
    12,692.04x = 218,073,068.68
  5. Step 5: Solve for x
    x = 218,073,068.68/12,692.04
  6. Step 6: Final answer
    x = 17,181.88

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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.