Home / 11,771.27-17,656.36-3,980.15

Finding the Fourth Proportional to 11,771.27, 17,656.36 and 3,980.15

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Solution

The fourth proportional to 11,771.27, 17,656.36 and 3,980.15 is: 5,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.27 : 17,656.36 = 3,980.15 : x
  2. Step 2: Convert to fraction form
    11,771.27/17,656.36 = 3,980.15/x
  3. Step 3: Cross multiply
    11,771.27x = 17,656.36 × 3,980.15
  4. Step 4: Simplify right side
    11,771.27x = 70,274,961.25
  5. Step 5: Solve for x
    x = 70,274,961.25/11,771.27
  6. Step 6: Final answer
    x = 5,970.04

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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.