Home / 12,917.75-19,376.81-3,683.75

Finding the Fourth Proportional to 12,917.75, 19,376.81 and 3,683.75

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Solution

The fourth proportional to 12,917.75, 19,376.81 and 3,683.75 is: 5,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.75 : 19,376.81 = 3,683.75 : x
  2. Step 2: Convert to fraction form
    12,917.75/19,376.81 = 3,683.75/x
  3. Step 3: Cross multiply
    12,917.75x = 19,376.81 × 3,683.75
  4. Step 4: Simplify right side
    12,917.75x = 71,379,305.42
  5. Step 5: Solve for x
    x = 71,379,305.42/12,917.75
  6. Step 6: Final answer
    x = 5,525.68

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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.