Home / 12,892.32-19,350.60-8,512.80

Finding the Fourth Proportional to 12,892.32, 19,350.60 and 8,512.80

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Solution

The fourth proportional to 12,892.32, 19,350.60 and 8,512.80 is: 12,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.32 : 19,350.60 = 8,512.80 : x
  2. Step 2: Convert to fraction form
    12,892.32/19,350.60 = 8,512.80/x
  3. Step 3: Cross multiply
    12,892.32x = 19,350.60 × 8,512.80
  4. Step 4: Simplify right side
    12,892.32x = 164,727,787.68
  5. Step 5: Solve for x
    x = 164,727,787.68/12,892.32
  6. Step 6: Final answer
    x = 12,777.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.