Home / 18,709.44-25,818.38-11,151.88

Finding the Fourth Proportional to 18,709.44, 25,818.38 and 11,151.88

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Solution

The fourth proportional to 18,709.44, 25,818.38 and 11,151.88 is: 15,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.44 : 25,818.38 = 11,151.88 : x
  2. Step 2: Convert to fraction form
    18,709.44/25,818.38 = 11,151.88/x
  3. Step 3: Cross multiply
    18,709.44x = 25,818.38 × 11,151.88
  4. Step 4: Simplify right side
    18,709.44x = 287,923,475.55
  5. Step 5: Solve for x
    x = 287,923,475.55/18,709.44
  6. Step 6: Final answer
    x = 15,389.21

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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.