Home / 12,512.81-18,772.97-7,246.60

Finding the Fourth Proportional to 12,512.81, 18,772.97 and 7,246.60

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Solution

The fourth proportional to 12,512.81, 18,772.97 and 7,246.60 is: 10,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.81 : 18,772.97 = 7,246.60 : x
  2. Step 2: Convert to fraction form
    12,512.81/18,772.97 = 7,246.60/x
  3. Step 3: Cross multiply
    12,512.81x = 18,772.97 × 7,246.60
  4. Step 4: Simplify right side
    12,512.81x = 136,040,121.24
  5. Step 5: Solve for x
    x = 136,040,121.24/12,512.81
  6. Step 6: Final answer
    x = 10,872.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.