Home / 12,216.42-18,331.92-4,424.22

Finding the Fourth Proportional to 12,216.42, 18,331.92 and 4,424.22

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Solution

The fourth proportional to 12,216.42, 18,331.92 and 4,424.22 is: 6,638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.42 : 18,331.92 = 4,424.22 : x
  2. Step 2: Convert to fraction form
    12,216.42/18,331.92 = 4,424.22/x
  3. Step 3: Cross multiply
    12,216.42x = 18,331.92 × 4,424.22
  4. Step 4: Simplify right side
    12,216.42x = 81,104,447.10
  5. Step 5: Solve for x
    x = 81,104,447.10/12,216.42
  6. Step 6: Final answer
    x = 6,638.97

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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.