Home / 18,361.26-25,338.42-9,977.76

Finding the Fourth Proportional to 18,361.26, 25,338.42 and 9,977.76

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Solution

The fourth proportional to 18,361.26, 25,338.42 and 9,977.76 is: 13,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,361.26 : 25,338.42 = 9,977.76 : x
  2. Step 2: Convert to fraction form
    18,361.26/25,338.42 = 9,977.76/x
  3. Step 3: Cross multiply
    18,361.26x = 25,338.42 × 9,977.76
  4. Step 4: Simplify right side
    18,361.26x = 252,820,673.54
  5. Step 5: Solve for x
    x = 252,820,673.54/18,361.26
  6. Step 6: Final answer
    x = 13,769.24

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Similar ratio
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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.