Home / 15,905.74-21,949.97-8,832.18

Finding the Fourth Proportional to 15,905.74, 21,949.97 and 8,832.18

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Solution

The fourth proportional to 15,905.74, 21,949.97 and 8,832.18 is: 12,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.74 : 21,949.97 = 8,832.18 : x
  2. Step 2: Convert to fraction form
    15,905.74/21,949.97 = 8,832.18/x
  3. Step 3: Cross multiply
    15,905.74x = 21,949.97 × 8,832.18
  4. Step 4: Simplify right side
    15,905.74x = 193,866,086.03
  5. Step 5: Solve for x
    x = 193,866,086.03/15,905.74
  6. Step 6: Final answer
    x = 12,188.44

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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.