Home / 18,247.48-27,402.49-11,268.78

Finding the Fourth Proportional to 18,247.48, 27,402.49 and 11,268.78

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Solution

The fourth proportional to 18,247.48, 27,402.49 and 11,268.78 is: 16,922.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.48 : 27,402.49 = 11,268.78 : x
  2. Step 2: Convert to fraction form
    18,247.48/27,402.49 = 11,268.78/x
  3. Step 3: Cross multiply
    18,247.48x = 27,402.49 × 11,268.78
  4. Step 4: Simplify right side
    18,247.48x = 308,792,631.26
  5. Step 5: Solve for x
    x = 308,792,631.26/18,247.48
  6. Step 6: Final answer
    x = 16,922.48

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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.