Home / 15,629.54-21,568.22-8,917.34

Finding the Fourth Proportional to 15,629.54, 21,568.22 and 8,917.34

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Solution

The fourth proportional to 15,629.54, 21,568.22 and 8,917.34 is: 12,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.54 : 21,568.22 = 8,917.34 : x
  2. Step 2: Convert to fraction form
    15,629.54/21,568.22 = 8,917.34/x
  3. Step 3: Cross multiply
    15,629.54x = 21,568.22 × 8,917.34
  4. Step 4: Simplify right side
    15,629.54x = 192,331,092.35
  5. Step 5: Solve for x
    x = 192,331,092.35/15,629.54
  6. Step 6: Final answer
    x = 12,305.62

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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.