Home / 12,611.14-18,917.52-4,288.84

Finding the Fourth Proportional to 12,611.14, 18,917.52 and 4,288.84

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Solution

The fourth proportional to 12,611.14, 18,917.52 and 4,288.84 is: 6,433.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.14 : 18,917.52 = 4,288.84 : x
  2. Step 2: Convert to fraction form
    12,611.14/18,917.52 = 4,288.84/x
  3. Step 3: Cross multiply
    12,611.14x = 18,917.52 × 4,288.84
  4. Step 4: Simplify right side
    12,611.14x = 81,134,216.48
  5. Step 5: Solve for x
    x = 81,134,216.48/12,611.14
  6. Step 6: Final answer
    x = 6,433.54

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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.