Home / 18,538.21-25,583.39-10,154.71

Finding the Fourth Proportional to 18,538.21, 25,583.39 and 10,154.71

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Solution

The fourth proportional to 18,538.21, 25,583.39 and 10,154.71 is: 14,013.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.21 : 25,583.39 = 10,154.71 : x
  2. Step 2: Convert to fraction form
    18,538.21/25,583.39 = 10,154.71/x
  3. Step 3: Cross multiply
    18,538.21x = 25,583.39 × 10,154.71
  4. Step 4: Simplify right side
    18,538.21x = 259,791,906.27
  5. Step 5: Solve for x
    x = 259,791,906.27/18,538.21
  6. Step 6: Final answer
    x = 14,013.86

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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.