Home / 11,777.28-16,251.30-6,739.80

Finding the Fourth Proportional to 11,777.28, 16,251.30 and 6,739.80

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Solution

The fourth proportional to 11,777.28, 16,251.30 and 6,739.80 is: 9,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.28 : 16,251.30 = 6,739.80 : x
  2. Step 2: Convert to fraction form
    11,777.28/16,251.30 = 6,739.80/x
  3. Step 3: Cross multiply
    11,777.28x = 16,251.30 × 6,739.80
  4. Step 4: Simplify right side
    11,777.28x = 109,530,511.74
  5. Step 5: Solve for x
    x = 109,530,511.74/11,777.28
  6. Step 6: Final answer
    x = 9,300.15

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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.