Home / 7,771.17-11,656.84-6,221.03

Finding the Fourth Proportional to 7,771.17, 11,656.84 and 6,221.03

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Solution

The fourth proportional to 7,771.17, 11,656.84 and 6,221.03 is: 9,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.17 : 11,656.84 = 6,221.03 : x
  2. Step 2: Convert to fraction form
    7,771.17/11,656.84 = 6,221.03/x
  3. Step 3: Cross multiply
    7,771.17x = 11,656.84 × 6,221.03
  4. Step 4: Simplify right side
    7,771.17x = 72,517,551.35
  5. Step 5: Solve for x
    x = 72,517,551.35/7,771.17
  6. Step 6: Final answer
    x = 9,331.61

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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.