Home / 18,669.31-25,764.21-10,171.99

Finding the Fourth Proportional to 18,669.31, 25,764.21 and 10,171.99

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Solution

The fourth proportional to 18,669.31, 25,764.21 and 10,171.99 is: 14,037.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.31 : 25,764.21 = 10,171.99 : x
  2. Step 2: Convert to fraction form
    18,669.31/25,764.21 = 10,171.99/x
  3. Step 3: Cross multiply
    18,669.31x = 25,764.21 × 10,171.99
  4. Step 4: Simplify right side
    18,669.31x = 262,073,286.48
  5. Step 5: Solve for x
    x = 262,073,286.48/18,669.31
  6. Step 6: Final answer
    x = 14,037.65

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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.