Home / 15,936.80-21,993.32-8,767.02

Finding the Fourth Proportional to 15,936.80, 21,993.32 and 8,767.02

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Solution

The fourth proportional to 15,936.80, 21,993.32 and 8,767.02 is: 12,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.80 : 21,993.32 = 8,767.02 : x
  2. Step 2: Convert to fraction form
    15,936.80/21,993.32 = 8,767.02/x
  3. Step 3: Cross multiply
    15,936.80x = 21,993.32 × 8,767.02
  4. Step 4: Simplify right side
    15,936.80x = 192,815,898.22
  5. Step 5: Solve for x
    x = 192,815,898.22/15,936.80
  6. Step 6: Final answer
    x = 12,098.78

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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.