Home / 12,926.12-19,391.45-6,684.43

Finding the Fourth Proportional to 12,926.12, 19,391.45 and 6,684.43

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Solution

The fourth proportional to 12,926.12, 19,391.45 and 6,684.43 is: 10,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.12 : 19,391.45 = 6,684.43 : x
  2. Step 2: Convert to fraction form
    12,926.12/19,391.45 = 6,684.43/x
  3. Step 3: Cross multiply
    12,926.12x = 19,391.45 × 6,684.43
  4. Step 4: Simplify right side
    12,926.12x = 129,620,855.31
  5. Step 5: Solve for x
    x = 129,620,855.31/12,926.12
  6. Step 6: Final answer
    x = 10,027.82

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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.