Home / 10,933.20-16,399.80-6,777.90

Finding the Fourth Proportional to 10,933.20, 16,399.80 and 6,777.90

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Solution

The fourth proportional to 10,933.20, 16,399.80 and 6,777.90 is: 10,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.20 : 16,399.80 = 6,777.90 : x
  2. Step 2: Convert to fraction form
    10,933.20/16,399.80 = 6,777.90/x
  3. Step 3: Cross multiply
    10,933.20x = 16,399.80 × 6,777.90
  4. Step 4: Simplify right side
    10,933.20x = 111,156,204.42
  5. Step 5: Solve for x
    x = 111,156,204.42/10,933.20
  6. Step 6: Final answer
    x = 10,166.85

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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.