Home / 12,926.75-19,390.13-3,692.75

Finding the Fourth Proportional to 12,926.75, 19,390.13 and 3,692.75

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Solution

The fourth proportional to 12,926.75, 19,390.13 and 3,692.75 is: 5,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.75 : 19,390.13 = 3,692.75 : x
  2. Step 2: Convert to fraction form
    12,926.75/19,390.13 = 3,692.75/x
  3. Step 3: Cross multiply
    12,926.75x = 19,390.13 × 3,692.75
  4. Step 4: Simplify right side
    12,926.75x = 71,602,884.09
  5. Step 5: Solve for x
    x = 71,602,884.09/12,926.75
  6. Step 6: Final answer
    x = 5,539.13

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Similar ratio
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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.