Home / 12,197.68-18,292.42-4,800.20

Finding the Fourth Proportional to 12,197.68, 18,292.42 and 4,800.20

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Solution

The fourth proportional to 12,197.68, 18,292.42 and 4,800.20 is: 7,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.68 : 18,292.42 = 4,800.20 : x
  2. Step 2: Convert to fraction form
    12,197.68/18,292.42 = 4,800.20/x
  3. Step 3: Cross multiply
    12,197.68x = 18,292.42 × 4,800.20
  4. Step 4: Simplify right side
    12,197.68x = 87,807,274.48
  5. Step 5: Solve for x
    x = 87,807,274.48/12,197.68
  6. Step 6: Final answer
    x = 7,198.69

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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.