Home / 18,768.29-25,900.25-11,694.72

Finding the Fourth Proportional to 18,768.29, 25,900.25 and 11,694.72

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Solution

The fourth proportional to 18,768.29, 25,900.25 and 11,694.72 is: 16,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.29 : 25,900.25 = 11,694.72 : x
  2. Step 2: Convert to fraction form
    18,768.29/25,900.25 = 11,694.72/x
  3. Step 3: Cross multiply
    18,768.29x = 25,900.25 × 11,694.72
  4. Step 4: Simplify right side
    18,768.29x = 302,896,113.21
  5. Step 5: Solve for x
    x = 302,896,113.21/18,768.29
  6. Step 6: Final answer
    x = 16,138.71

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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.