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Finding the Fourth Proportional to 18,146.97, 25,045.41 and 10,189.74

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Solution

The fourth proportional to 18,146.97, 25,045.41 and 10,189.74 is: 14,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.97 : 25,045.41 = 10,189.74 : x
  2. Step 2: Convert to fraction form
    18,146.97/25,045.41 = 10,189.74/x
  3. Step 3: Cross multiply
    18,146.97x = 25,045.41 × 10,189.74
  4. Step 4: Simplify right side
    18,146.97x = 255,206,216.09
  5. Step 5: Solve for x
    x = 255,206,216.09/18,146.97
  6. Step 6: Final answer
    x = 14,063.30

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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.