Home / 18,763.21-25,888.71-11,684.62

Finding the Fourth Proportional to 18,763.21, 25,888.71 and 11,684.62

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Solution

The fourth proportional to 18,763.21, 25,888.71 and 11,684.62 is: 16,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.21 : 25,888.71 = 11,684.62 : x
  2. Step 2: Convert to fraction form
    18,763.21/25,888.71 = 11,684.62/x
  3. Step 3: Cross multiply
    18,763.21x = 25,888.71 × 11,684.62
  4. Step 4: Simplify right side
    18,763.21x = 302,499,738.64
  5. Step 5: Solve for x
    x = 302,499,738.64/18,763.21
  6. Step 6: Final answer
    x = 16,121.96

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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.