Home / 12,211.41-16,850.79-7,175.82

Finding the Fourth Proportional to 12,211.41, 16,850.79 and 7,175.82

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Solution

The fourth proportional to 12,211.41, 16,850.79 and 7,175.82 is: 9,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.41 : 16,850.79 = 7,175.82 : x
  2. Step 2: Convert to fraction form
    12,211.41/16,850.79 = 7,175.82/x
  3. Step 3: Cross multiply
    12,211.41x = 16,850.79 × 7,175.82
  4. Step 4: Simplify right side
    12,211.41x = 120,918,235.90
  5. Step 5: Solve for x
    x = 120,918,235.90/12,211.41
  6. Step 6: Final answer
    x = 9,902.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.