Home / 18,850.36-25,996.14-12,809.66

Finding the Fourth Proportional to 18,850.36, 25,996.14 and 12,809.66

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Solution

The fourth proportional to 18,850.36, 25,996.14 and 12,809.66 is: 17,665.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.36 : 25,996.14 = 12,809.66 : x
  2. Step 2: Convert to fraction form
    18,850.36/25,996.14 = 12,809.66/x
  3. Step 3: Cross multiply
    18,850.36x = 25,996.14 × 12,809.66
  4. Step 4: Simplify right side
    18,850.36x = 333,001,621.29
  5. Step 5: Solve for x
    x = 333,001,621.29/18,850.36
  6. Step 6: Final answer
    x = 17,665.53

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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.