Home / 15,905.58-21,949.83-8,832.12

Finding the Fourth Proportional to 15,905.58, 21,949.83 and 8,832.12

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Solution

The fourth proportional to 15,905.58, 21,949.83 and 8,832.12 is: 12,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.58 : 21,949.83 = 8,832.12 : x
  2. Step 2: Convert to fraction form
    15,905.58/21,949.83 = 8,832.12/x
  3. Step 3: Cross multiply
    15,905.58x = 21,949.83 × 8,832.12
  4. Step 4: Simplify right side
    15,905.58x = 193,863,532.54
  5. Step 5: Solve for x
    x = 193,863,532.54/15,905.58
  6. Step 6: Final answer
    x = 12,188.40

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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.