Home / 12,778.45-19,175.87-6,201.05

Finding the Fourth Proportional to 12,778.45, 19,175.87 and 6,201.05

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Solution

The fourth proportional to 12,778.45, 19,175.87 and 6,201.05 is: 9,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778.45 : 19,175.87 = 6,201.05 : x
  2. Step 2: Convert to fraction form
    12,778.45/19,175.87 = 6,201.05/x
  3. Step 3: Cross multiply
    12,778.45x = 19,175.87 × 6,201.05
  4. Step 4: Simplify right side
    12,778.45x = 118,910,448.29
  5. Step 5: Solve for x
    x = 118,910,448.29/12,778.45
  6. Step 6: Final answer
    x = 9,305.55

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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.