Home / 12,917.30-19,377.77-4,149.27

Finding the Fourth Proportional to 12,917.30, 19,377.77 and 4,149.27

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Solution

The fourth proportional to 12,917.30, 19,377.77 and 4,149.27 is: 6,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.30 : 19,377.77 = 4,149.27 : x
  2. Step 2: Convert to fraction form
    12,917.30/19,377.77 = 4,149.27/x
  3. Step 3: Cross multiply
    12,917.30x = 19,377.77 × 4,149.27
  4. Step 4: Simplify right side
    12,917.30x = 80,403,578.98
  5. Step 5: Solve for x
    x = 80,403,578.98/12,917.30
  6. Step 6: Final answer
    x = 6,224.49

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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.