Home / 13,911.63-19,186.88-12,229.44

Finding the Fourth Proportional to 13,911.63, 19,186.88 and 12,229.44

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Solution

The fourth proportional to 13,911.63, 19,186.88 and 12,229.44 is: 16,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.63 : 19,186.88 = 12,229.44 : x
  2. Step 2: Convert to fraction form
    13,911.63/19,186.88 = 12,229.44/x
  3. Step 3: Cross multiply
    13,911.63x = 19,186.88 × 12,229.44
  4. Step 4: Simplify right side
    13,911.63x = 234,644,736.60
  5. Step 5: Solve for x
    x = 234,644,736.60/13,911.63
  6. Step 6: Final answer
    x = 16,866.80

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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.