Home / 18,138.62-25,028.88-10,180.76

Finding the Fourth Proportional to 18,138.62, 25,028.88 and 10,180.76

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Solution

The fourth proportional to 18,138.62, 25,028.88 and 10,180.76 is: 14,048.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.62 : 25,028.88 = 10,180.76 : x
  2. Step 2: Convert to fraction form
    18,138.62/25,028.88 = 10,180.76/x
  3. Step 3: Cross multiply
    18,138.62x = 25,028.88 × 10,180.76
  4. Step 4: Simplify right side
    18,138.62x = 254,813,020.35
  5. Step 5: Solve for x
    x = 254,813,020.35/18,138.62
  6. Step 6: Final answer
    x = 14,048.09

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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.