Home / 18,571.49-25,628.33-10,187.81

Finding the Fourth Proportional to 18,571.49, 25,628.33 and 10,187.81

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Solution

The fourth proportional to 18,571.49, 25,628.33 and 10,187.81 is: 14,059.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.49 : 25,628.33 = 10,187.81 : x
  2. Step 2: Convert to fraction form
    18,571.49/25,628.33 = 10,187.81/x
  3. Step 3: Cross multiply
    18,571.49x = 25,628.33 × 10,187.81
  4. Step 4: Simplify right side
    18,571.49x = 261,096,453.99
  5. Step 5: Solve for x
    x = 261,096,453.99/18,571.49
  6. Step 6: Final answer
    x = 14,059.00

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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.