Home / 18,223.41-25,141.01-11,137.53

Finding the Fourth Proportional to 18,223.41, 25,141.01 and 11,137.53

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Solution

The fourth proportional to 18,223.41, 25,141.01 and 11,137.53 is: 15,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.41 : 25,141.01 = 11,137.53 : x
  2. Step 2: Convert to fraction form
    18,223.41/25,141.01 = 11,137.53/x
  3. Step 3: Cross multiply
    18,223.41x = 25,141.01 × 11,137.53
  4. Step 4: Simplify right side
    18,223.41x = 280,008,697.42
  5. Step 5: Solve for x
    x = 280,008,697.42/18,223.41
  6. Step 6: Final answer
    x = 15,365.33

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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.