Home / 12,238.48-18,361.88-4,447.92

Finding the Fourth Proportional to 12,238.48, 18,361.88 and 4,447.92

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Solution

The fourth proportional to 12,238.48, 18,361.88 and 4,447.92 is: 6,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.48 : 18,361.88 = 4,447.92 : x
  2. Step 2: Convert to fraction form
    12,238.48/18,361.88 = 4,447.92/x
  3. Step 3: Cross multiply
    12,238.48x = 18,361.88 × 4,447.92
  4. Step 4: Simplify right side
    12,238.48x = 81,672,173.29
  5. Step 5: Solve for x
    x = 81,672,173.29/12,238.48
  6. Step 6: Final answer
    x = 6,673.39

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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.