Home / 18,921.75-26,112.83-10,538.25

Finding the Fourth Proportional to 18,921.75, 26,112.83 and 10,538.25

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Solution

The fourth proportional to 18,921.75, 26,112.83 and 10,538.25 is: 14,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.75 : 26,112.83 = 10,538.25 : x
  2. Step 2: Convert to fraction form
    18,921.75/26,112.83 = 10,538.25/x
  3. Step 3: Cross multiply
    18,921.75x = 26,112.83 × 10,538.25
  4. Step 4: Simplify right side
    18,921.75x = 275,183,478.06
  5. Step 5: Solve for x
    x = 275,183,478.06/18,921.75
  6. Step 6: Final answer
    x = 14,543.24

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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.