Home / 12,511.82-17,229.56-11,185.04

Finding the Fourth Proportional to 12,511.82, 17,229.56 and 11,185.04

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Solution

The fourth proportional to 12,511.82, 17,229.56 and 11,185.04 is: 15,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.82 : 17,229.56 = 11,185.04 : x
  2. Step 2: Convert to fraction form
    12,511.82/17,229.56 = 11,185.04/x
  3. Step 3: Cross multiply
    12,511.82x = 17,229.56 × 11,185.04
  4. Step 4: Simplify right side
    12,511.82x = 192,713,317.78
  5. Step 5: Solve for x
    x = 192,713,317.78/12,511.82
  6. Step 6: Final answer
    x = 15,402.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.