Home / 13,754.30-18,937.77-12,137.54

Finding the Fourth Proportional to 13,754.30, 18,937.77 and 12,137.54

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Solution

The fourth proportional to 13,754.30, 18,937.77 and 12,137.54 is: 16,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.30 : 18,937.77 = 12,137.54 : x
  2. Step 2: Convert to fraction form
    13,754.30/18,937.77 = 12,137.54/x
  3. Step 3: Cross multiply
    13,754.30x = 18,937.77 × 12,137.54
  4. Step 4: Simplify right side
    13,754.30x = 229,857,940.89
  5. Step 5: Solve for x
    x = 229,857,940.89/13,754.30
  6. Step 6: Final answer
    x = 16,711.71

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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.