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Finding the Fourth Proportional to 15,546.96, 21,453.96 and 8,922.96

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Solution

The fourth proportional to 15,546.96, 21,453.96 and 8,922.96 is: 12,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.96 : 21,453.96 = 8,922.96 : x
  2. Step 2: Convert to fraction form
    15,546.96/21,453.96 = 8,922.96/x
  3. Step 3: Cross multiply
    15,546.96x = 21,453.96 × 8,922.96
  4. Step 4: Simplify right side
    15,546.96x = 191,432,826.92
  5. Step 5: Solve for x
    x = 191,432,826.92/15,546.96
  6. Step 6: Final answer
    x = 12,313.20

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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.