Home / 15,839.33-21,857.37-8,765.33

Finding the Fourth Proportional to 15,839.33, 21,857.37 and 8,765.33

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Solution

The fourth proportional to 15,839.33, 21,857.37 and 8,765.33 is: 12,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.33 : 21,857.37 = 8,765.33 : x
  2. Step 2: Convert to fraction form
    15,839.33/21,857.37 = 8,765.33/x
  3. Step 3: Cross multiply
    15,839.33x = 21,857.37 × 8,765.33
  4. Step 4: Simplify right side
    15,839.33x = 191,587,060.98
  5. Step 5: Solve for x
    x = 191,587,060.98/15,839.33
  6. Step 6: Final answer
    x = 12,095.65

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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.