Home / 12,995.28-19,494.78-4,107.60

Finding the Fourth Proportional to 12,995.28, 19,494.78 and 4,107.60

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Solution

The fourth proportional to 12,995.28, 19,494.78 and 4,107.60 is: 6,161.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.28 : 19,494.78 = 4,107.60 : x
  2. Step 2: Convert to fraction form
    12,995.28/19,494.78 = 4,107.60/x
  3. Step 3: Cross multiply
    12,995.28x = 19,494.78 × 4,107.60
  4. Step 4: Simplify right side
    12,995.28x = 80,076,758.33
  5. Step 5: Solve for x
    x = 80,076,758.33/12,995.28
  6. Step 6: Final answer
    x = 6,161.99

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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.