Home / 18,439.44-25,449.54-10,887.66

Finding the Fourth Proportional to 18,439.44, 25,449.54 and 10,887.66

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Solution

The fourth proportional to 18,439.44, 25,449.54 and 10,887.66 is: 15,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.44 : 25,449.54 = 10,887.66 : x
  2. Step 2: Convert to fraction form
    18,439.44/25,449.54 = 10,887.66/x
  3. Step 3: Cross multiply
    18,439.44x = 25,449.54 × 10,887.66
  4. Step 4: Simplify right side
    18,439.44x = 277,085,938.68
  5. Step 5: Solve for x
    x = 277,085,938.68/18,439.44
  6. Step 6: Final answer
    x = 15,026.81

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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.