Home / 18,790.11-25,930.04-10,406.43

Finding the Fourth Proportional to 18,790.11, 25,930.04 and 10,406.43

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Solution

The fourth proportional to 18,790.11, 25,930.04 and 10,406.43 is: 14,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.11 : 25,930.04 = 10,406.43 : x
  2. Step 2: Convert to fraction form
    18,790.11/25,930.04 = 10,406.43/x
  3. Step 3: Cross multiply
    18,790.11x = 25,930.04 × 10,406.43
  4. Step 4: Simplify right side
    18,790.11x = 269,839,094.13
  5. Step 5: Solve for x
    x = 269,839,094.13/18,790.11
  6. Step 6: Final answer
    x = 14,360.70

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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.