Home / 12,099.30-18,150.84-3,777.54

Finding the Fourth Proportional to 12,099.30, 18,150.84 and 3,777.54

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Solution

The fourth proportional to 12,099.30, 18,150.84 and 3,777.54 is: 5,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.30 : 18,150.84 = 3,777.54 : x
  2. Step 2: Convert to fraction form
    12,099.30/18,150.84 = 3,777.54/x
  3. Step 3: Cross multiply
    12,099.30x = 18,150.84 × 3,777.54
  4. Step 4: Simplify right side
    12,099.30x = 68,565,524.13
  5. Step 5: Solve for x
    x = 68,565,524.13/12,099.30
  6. Step 6: Final answer
    x = 5,666.90

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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.