Home / 18,740.28-25,866.72-11,662.56

Finding the Fourth Proportional to 18,740.28, 25,866.72 and 11,662.56

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Solution

The fourth proportional to 18,740.28, 25,866.72 and 11,662.56 is: 16,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.28 : 25,866.72 = 11,662.56 : x
  2. Step 2: Convert to fraction form
    18,740.28/25,866.72 = 11,662.56/x
  3. Step 3: Cross multiply
    18,740.28x = 25,866.72 × 11,662.56
  4. Step 4: Simplify right side
    18,740.28x = 301,672,174.00
  5. Step 5: Solve for x
    x = 301,672,174.00/18,740.28
  6. Step 6: Final answer
    x = 16,097.53

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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.