Home / 12,287.20-16,954.32-11,664.64

Finding the Fourth Proportional to 12,287.20, 16,954.32 and 11,664.64

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Solution

The fourth proportional to 12,287.20, 16,954.32 and 11,664.64 is: 16,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.20 : 16,954.32 = 11,664.64 : x
  2. Step 2: Convert to fraction form
    12,287.20/16,954.32 = 11,664.64/x
  3. Step 3: Cross multiply
    12,287.20x = 16,954.32 × 11,664.64
  4. Step 4: Simplify right side
    12,287.20x = 197,766,039.24
  5. Step 5: Solve for x
    x = 197,766,039.24/12,287.20
  6. Step 6: Final answer
    x = 16,095.29

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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.