Home / 13,911.26-19,186.36-12,229.07

Finding the Fourth Proportional to 13,911.26, 19,186.36 and 12,229.07

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Solution

The fourth proportional to 13,911.26, 19,186.36 and 12,229.07 is: 16,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.26 : 19,186.36 = 12,229.07 : x
  2. Step 2: Convert to fraction form
    13,911.26/19,186.36 = 12,229.07/x
  3. Step 3: Cross multiply
    13,911.26x = 19,186.36 × 12,229.07
  4. Step 4: Simplify right side
    13,911.26x = 234,631,212.98
  5. Step 5: Solve for x
    x = 234,631,212.98/13,911.26
  6. Step 6: Final answer
    x = 16,866.29

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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.