Home / 18,790.13-25,930.37-10,406.63

Finding the Fourth Proportional to 18,790.13, 25,930.37 and 10,406.63

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Solution

The fourth proportional to 18,790.13, 25,930.37 and 10,406.63 is: 14,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.13 : 25,930.37 = 10,406.63 : x
  2. Step 2: Convert to fraction form
    18,790.13/25,930.37 = 10,406.63/x
  3. Step 3: Cross multiply
    18,790.13x = 25,930.37 × 10,406.63
  4. Step 4: Simplify right side
    18,790.13x = 269,847,766.35
  5. Step 5: Solve for x
    x = 269,847,766.35/18,790.13
  6. Step 6: Final answer
    x = 14,361.14

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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.