Home / 12,436.75-17,162.72-6,847.75

Finding the Fourth Proportional to 12,436.75, 17,162.72 and 6,847.75

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Solution

The fourth proportional to 12,436.75, 17,162.72 and 6,847.75 is: 9,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.75 : 17,162.72 = 6,847.75 : x
  2. Step 2: Convert to fraction form
    12,436.75/17,162.72 = 6,847.75/x
  3. Step 3: Cross multiply
    12,436.75x = 17,162.72 × 6,847.75
  4. Step 4: Simplify right side
    12,436.75x = 117,526,015.88
  5. Step 5: Solve for x
    x = 117,526,015.88/12,436.75
  6. Step 6: Final answer
    x = 9,449.90

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Half scale
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Double scale
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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.