Home / 12,217.12-18,328.17-5,197.12

Finding the Fourth Proportional to 12,217.12, 18,328.17 and 5,197.12

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Solution

The fourth proportional to 12,217.12, 18,328.17 and 5,197.12 is: 7,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.12 : 18,328.17 = 5,197.12 : x
  2. Step 2: Convert to fraction form
    12,217.12/18,328.17 = 5,197.12/x
  3. Step 3: Cross multiply
    12,217.12x = 18,328.17 × 5,197.12
  4. Step 4: Simplify right side
    12,217.12x = 95,253,698.87
  5. Step 5: Solve for x
    x = 95,253,698.87/12,217.12
  6. Step 6: Final answer
    x = 7,796.74

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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.