Home / 18,953.96-26,161.67-10,998.75

Finding the Fourth Proportional to 18,953.96, 26,161.67 and 10,998.75

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Solution

The fourth proportional to 18,953.96, 26,161.67 and 10,998.75 is: 15,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.96 : 26,161.67 = 10,998.75 : x
  2. Step 2: Convert to fraction form
    18,953.96/26,161.67 = 10,998.75/x
  3. Step 3: Cross multiply
    18,953.96x = 26,161.67 × 10,998.75
  4. Step 4: Simplify right side
    18,953.96x = 287,745,695.41
  5. Step 5: Solve for x
    x = 287,745,695.41/18,953.96
  6. Step 6: Final answer
    x = 15,181.29

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Half scale
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Double scale
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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.