Home / 18,837.60-25,997.05-12,453.11

Finding the Fourth Proportional to 18,837.60, 25,997.05 and 12,453.11

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Solution

The fourth proportional to 18,837.60, 25,997.05 and 12,453.11 is: 17,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.60 : 25,997.05 = 12,453.11 : x
  2. Step 2: Convert to fraction form
    18,837.60/25,997.05 = 12,453.11/x
  3. Step 3: Cross multiply
    18,837.60x = 25,997.05 × 12,453.11
  4. Step 4: Simplify right side
    18,837.60x = 323,744,123.33
  5. Step 5: Solve for x
    x = 323,744,123.33/18,837.60
  6. Step 6: Final answer
    x = 17,186.06

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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.