Home / 13,493.94-18,639.77-12,236.41

Finding the Fourth Proportional to 13,493.94, 18,639.77 and 12,236.41

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Solution

The fourth proportional to 13,493.94, 18,639.77 and 12,236.41 is: 16,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.94 : 18,639.77 = 12,236.41 : x
  2. Step 2: Convert to fraction form
    13,493.94/18,639.77 = 12,236.41/x
  3. Step 3: Cross multiply
    13,493.94x = 18,639.77 × 12,236.41
  4. Step 4: Simplify right side
    13,493.94x = 228,083,868.03
  5. Step 5: Solve for x
    x = 228,083,868.03/13,493.94
  6. Step 6: Final answer
    x = 16,902.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.