Home / 12,240.56-18,361.92-4,447.28

Finding the Fourth Proportional to 12,240.56, 18,361.92 and 4,447.28

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Solution

The fourth proportional to 12,240.56, 18,361.92 and 4,447.28 is: 6,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.56 : 18,361.92 = 4,447.28 : x
  2. Step 2: Convert to fraction form
    12,240.56/18,361.92 = 4,447.28/x
  3. Step 3: Cross multiply
    12,240.56x = 18,361.92 × 4,447.28
  4. Step 4: Simplify right side
    12,240.56x = 81,660,599.58
  5. Step 5: Solve for x
    x = 81,660,599.58/12,240.56
  6. Step 6: Final answer
    x = 6,671.31

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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.