Home / 15,801.22-21,805.09-8,727.49

Finding the Fourth Proportional to 15,801.22, 21,805.09 and 8,727.49

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Solution

The fourth proportional to 15,801.22, 21,805.09 and 8,727.49 is: 12,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.22 : 21,805.09 = 8,727.49 : x
  2. Step 2: Convert to fraction form
    15,801.22/21,805.09 = 8,727.49/x
  3. Step 3: Cross multiply
    15,801.22x = 21,805.09 × 8,727.49
  4. Step 4: Simplify right side
    15,801.22x = 190,303,704.92
  5. Step 5: Solve for x
    x = 190,303,704.92/15,801.22
  6. Step 6: Final answer
    x = 12,043.61

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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.