Home / 18,185.20-25,104-13,710.80

Finding the Fourth Proportional to 18,185.20, 25,104 and 13,710.80

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Solution

The fourth proportional to 18,185.20, 25,104 and 13,710.80 is: 18,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.20 : 25,104 = 13,710.80 : x
  2. Step 2: Convert to fraction form
    18,185.20/25,104 = 13,710.80/x
  3. Step 3: Cross multiply
    18,185.20x = 25,104 × 13,710.80
  4. Step 4: Simplify right side
    18,185.20x = 344,195,923.20
  5. Step 5: Solve for x
    x = 344,195,923.20/18,185.20
  6. Step 6: Final answer
    x = 18,927.26

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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.