Home / 16,515.45-22,790.79-8,961.39

Finding the Fourth Proportional to 16,515.45, 22,790.79 and 8,961.39

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Solution

The fourth proportional to 16,515.45, 22,790.79 and 8,961.39 is: 12,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.45 : 22,790.79 = 8,961.39 : x
  2. Step 2: Convert to fraction form
    16,515.45/22,790.79 = 8,961.39/x
  3. Step 3: Cross multiply
    16,515.45x = 22,790.79 × 8,961.39
  4. Step 4: Simplify right side
    16,515.45x = 204,237,157.60
  5. Step 5: Solve for x
    x = 204,237,157.60/16,515.45
  6. Step 6: Final answer
    x = 12,366.43

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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.