Home / 15,839.64-21,857.70-8,766.06

Finding the Fourth Proportional to 15,839.64, 21,857.70 and 8,766.06

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Solution

The fourth proportional to 15,839.64, 21,857.70 and 8,766.06 is: 12,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.64 : 21,857.70 = 8,766.06 : x
  2. Step 2: Convert to fraction form
    15,839.64/21,857.70 = 8,766.06/x
  3. Step 3: Cross multiply
    15,839.64x = 21,857.70 × 8,766.06
  4. Step 4: Simplify right side
    15,839.64x = 191,605,909.66
  5. Step 5: Solve for x
    x = 191,605,909.66/15,839.64
  6. Step 6: Final answer
    x = 12,096.61

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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.