Home / 7,667.44-11,500.52-2,120.85

Finding the Fourth Proportional to 7,667.44, 11,500.52 and 2,120.85

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Solution

The fourth proportional to 7,667.44, 11,500.52 and 2,120.85 is: 3,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.44 : 11,500.52 = 2,120.85 : x
  2. Step 2: Convert to fraction form
    7,667.44/11,500.52 = 2,120.85/x
  3. Step 3: Cross multiply
    7,667.44x = 11,500.52 × 2,120.85
  4. Step 4: Simplify right side
    7,667.44x = 24,390,867.24
  5. Step 5: Solve for x
    x = 24,390,867.24/7,667.44
  6. Step 6: Final answer
    x = 3,181.10

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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.