Home / 15,917.43-21,965.90-8,843.70

Finding the Fourth Proportional to 15,917.43, 21,965.90 and 8,843.70

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Solution

The fourth proportional to 15,917.43, 21,965.90 and 8,843.70 is: 12,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.43 : 21,965.90 = 8,843.70 : x
  2. Step 2: Convert to fraction form
    15,917.43/21,965.90 = 8,843.70/x
  3. Step 3: Cross multiply
    15,917.43x = 21,965.90 × 8,843.70
  4. Step 4: Simplify right side
    15,917.43x = 194,259,829.83
  5. Step 5: Solve for x
    x = 194,259,829.83/15,917.43
  6. Step 6: Final answer
    x = 12,204.22

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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.