Home / 12,216.75-18,325.13-2,982.75

Finding the Fourth Proportional to 12,216.75, 18,325.13 and 2,982.75

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Solution

The fourth proportional to 12,216.75, 18,325.13 and 2,982.75 is: 4,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.75 : 18,325.13 = 2,982.75 : x
  2. Step 2: Convert to fraction form
    12,216.75/18,325.13 = 2,982.75/x
  3. Step 3: Cross multiply
    12,216.75x = 18,325.13 × 2,982.75
  4. Step 4: Simplify right side
    12,216.75x = 54,659,281.51
  5. Step 5: Solve for x
    x = 54,659,281.51/12,216.75
  6. Step 6: Final answer
    x = 4,474.13

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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.