Home / 12,917.96-19,376.85-4,152.89

Finding the Fourth Proportional to 12,917.96, 19,376.85 and 4,152.89

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Solution

The fourth proportional to 12,917.96, 19,376.85 and 4,152.89 is: 6,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.96 : 19,376.85 = 4,152.89 : x
  2. Step 2: Convert to fraction form
    12,917.96/19,376.85 = 4,152.89/x
  3. Step 3: Cross multiply
    12,917.96x = 19,376.85 × 4,152.89
  4. Step 4: Simplify right side
    12,917.96x = 80,469,990.61
  5. Step 5: Solve for x
    x = 80,469,990.61/12,917.96
  6. Step 6: Final answer
    x = 6,229.31

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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.