Home / 12,628.08-18,942.48-3,862.80

Finding the Fourth Proportional to 12,628.08, 18,942.48 and 3,862.80

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Solution

The fourth proportional to 12,628.08, 18,942.48 and 3,862.80 is: 5,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.08 : 18,942.48 = 3,862.80 : x
  2. Step 2: Convert to fraction form
    12,628.08/18,942.48 = 3,862.80/x
  3. Step 3: Cross multiply
    12,628.08x = 18,942.48 × 3,862.80
  4. Step 4: Simplify right side
    12,628.08x = 73,171,011.74
  5. Step 5: Solve for x
    x = 73,171,011.74/12,628.08
  6. Step 6: Final answer
    x = 5,794.31

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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.