Home / 7,474.39-11,183.90-4,678.79

Finding the Fourth Proportional to 7,474.39, 11,183.90 and 4,678.79

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Solution

The fourth proportional to 7,474.39, 11,183.90 and 4,678.79 is: 7,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.39 : 11,183.90 = 4,678.79 : x
  2. Step 2: Convert to fraction form
    7,474.39/11,183.90 = 4,678.79/x
  3. Step 3: Cross multiply
    7,474.39x = 11,183.90 × 4,678.79
  4. Step 4: Simplify right side
    7,474.39x = 52,327,119.48
  5. Step 5: Solve for x
    x = 52,327,119.48/7,474.39
  6. Step 6: Final answer
    x = 7,000.85

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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.