Home / 7,906.16-11,861.40-3,292.40

Finding the Fourth Proportional to 7,906.16, 11,861.40 and 3,292.40

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Solution

The fourth proportional to 7,906.16, 11,861.40 and 3,292.40 is: 4,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.16 : 11,861.40 = 3,292.40 : x
  2. Step 2: Convert to fraction form
    7,906.16/11,861.40 = 3,292.40/x
  3. Step 3: Cross multiply
    7,906.16x = 11,861.40 × 3,292.40
  4. Step 4: Simplify right side
    7,906.16x = 39,052,473.36
  5. Step 5: Solve for x
    x = 39,052,473.36/7,906.16
  6. Step 6: Final answer
    x = 4,939.50

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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.