Home / 12,198.63-18,285.36-4,800.09

Finding the Fourth Proportional to 12,198.63, 18,285.36 and 4,800.09

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Solution

The fourth proportional to 12,198.63, 18,285.36 and 4,800.09 is: 7,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.63 : 18,285.36 = 4,800.09 : x
  2. Step 2: Convert to fraction form
    12,198.63/18,285.36 = 4,800.09/x
  3. Step 3: Cross multiply
    12,198.63x = 18,285.36 × 4,800.09
  4. Step 4: Simplify right side
    12,198.63x = 87,771,373.68
  5. Step 5: Solve for x
    x = 87,771,373.68/12,198.63
  6. Step 6: Final answer
    x = 7,195.18

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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.