Home / 12,611.08-17,403.12-6,945.70

Finding the Fourth Proportional to 12,611.08, 17,403.12 and 6,945.70

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Solution

The fourth proportional to 12,611.08, 17,403.12 and 6,945.70 is: 9,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.08 : 17,403.12 = 6,945.70 : x
  2. Step 2: Convert to fraction form
    12,611.08/17,403.12 = 6,945.70/x
  3. Step 3: Cross multiply
    12,611.08x = 17,403.12 × 6,945.70
  4. Step 4: Simplify right side
    12,611.08x = 120,876,850.58
  5. Step 5: Solve for x
    x = 120,876,850.58/12,611.08
  6. Step 6: Final answer
    x = 9,584.97

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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.