Home / 12,216.68-18,324.70-2,982.60

Finding the Fourth Proportional to 12,216.68, 18,324.70 and 2,982.60

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Solution

The fourth proportional to 12,216.68, 18,324.70 and 2,982.60 is: 4,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.68 : 18,324.70 = 2,982.60 : x
  2. Step 2: Convert to fraction form
    12,216.68/18,324.70 = 2,982.60/x
  3. Step 3: Cross multiply
    12,216.68x = 18,324.70 × 2,982.60
  4. Step 4: Simplify right side
    12,216.68x = 54,655,250.22
  5. Step 5: Solve for x
    x = 54,655,250.22/12,216.68
  6. Step 6: Final answer
    x = 4,473.82

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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.