Home / 12,917.97-19,380.03-4,152.88

Finding the Fourth Proportional to 12,917.97, 19,380.03 and 4,152.88

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Solution

The fourth proportional to 12,917.97, 19,380.03 and 4,152.88 is: 6,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.97 : 19,380.03 = 4,152.88 : x
  2. Step 2: Convert to fraction form
    12,917.97/19,380.03 = 4,152.88/x
  3. Step 3: Cross multiply
    12,917.97x = 19,380.03 × 4,152.88
  4. Step 4: Simplify right side
    12,917.97x = 80,482,938.99
  5. Step 5: Solve for x
    x = 80,482,938.99/12,917.97
  6. Step 6: Final answer
    x = 6,230.31

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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.