Home / 18,186.89-25,089.44-11,813.03

Finding the Fourth Proportional to 18,186.89, 25,089.44 and 11,813.03

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Solution

The fourth proportional to 18,186.89, 25,089.44 and 11,813.03 is: 16,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.89 : 25,089.44 = 11,813.03 : x
  2. Step 2: Convert to fraction form
    18,186.89/25,089.44 = 11,813.03/x
  3. Step 3: Cross multiply
    18,186.89x = 25,089.44 × 11,813.03
  4. Step 4: Simplify right side
    18,186.89x = 296,382,248.34
  5. Step 5: Solve for x
    x = 296,382,248.34/18,186.89
  6. Step 6: Final answer
    x = 16,296.48

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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.