Home / 12,440.88-18,747.09-10,297.80

Finding the Fourth Proportional to 12,440.88, 18,747.09 and 10,297.80

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Solution

The fourth proportional to 12,440.88, 18,747.09 and 10,297.80 is: 15,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.88 : 18,747.09 = 10,297.80 : x
  2. Step 2: Convert to fraction form
    12,440.88/18,747.09 = 10,297.80/x
  3. Step 3: Cross multiply
    12,440.88x = 18,747.09 × 10,297.80
  4. Step 4: Simplify right side
    12,440.88x = 193,053,783.40
  5. Step 5: Solve for x
    x = 193,053,783.40/12,440.88
  6. Step 6: Final answer
    x = 15,517.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.