Home / 18,663.68-25,755.60-10,705.73

Finding the Fourth Proportional to 18,663.68, 25,755.60 and 10,705.73

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Solution

The fourth proportional to 18,663.68, 25,755.60 and 10,705.73 is: 14,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.68 : 25,755.60 = 10,705.73 : x
  2. Step 2: Convert to fraction form
    18,663.68/25,755.60 = 10,705.73/x
  3. Step 3: Cross multiply
    18,663.68x = 25,755.60 × 10,705.73
  4. Step 4: Simplify right side
    18,663.68x = 275,732,499.59
  5. Step 5: Solve for x
    x = 275,732,499.59/18,663.68
  6. Step 6: Final answer
    x = 14,773.75

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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.