Home / 18,536.78-27,806.68-5,389.13

Finding the Fourth Proportional to 18,536.78, 27,806.68 and 5,389.13

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Solution

The fourth proportional to 18,536.78, 27,806.68 and 5,389.13 is: 8,084.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.78 : 27,806.68 = 5,389.13 : x
  2. Step 2: Convert to fraction form
    18,536.78/27,806.68 = 5,389.13/x
  3. Step 3: Cross multiply
    18,536.78x = 27,806.68 × 5,389.13
  4. Step 4: Simplify right side
    18,536.78x = 149,853,813.39
  5. Step 5: Solve for x
    x = 149,853,813.39/18,536.78
  6. Step 6: Final answer
    x = 8,084.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.