Home / 18,187.14-25,089.78-11,813.28

Finding the Fourth Proportional to 18,187.14, 25,089.78 and 11,813.28

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Solution

The fourth proportional to 18,187.14, 25,089.78 and 11,813.28 is: 16,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.14 : 25,089.78 = 11,813.28 : x
  2. Step 2: Convert to fraction form
    18,187.14/25,089.78 = 11,813.28/x
  3. Step 3: Cross multiply
    18,187.14x = 25,089.78 × 11,813.28
  4. Step 4: Simplify right side
    18,187.14x = 296,392,596.28
  5. Step 5: Solve for x
    x = 296,392,596.28/18,187.14
  6. Step 6: Final answer
    x = 16,296.82

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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.