Home / 12,176.42-18,253.66-4,379.75

Finding the Fourth Proportional to 12,176.42, 18,253.66 and 4,379.75

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Solution

The fourth proportional to 12,176.42, 18,253.66 and 4,379.75 is: 6,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.42 : 18,253.66 = 4,379.75 : x
  2. Step 2: Convert to fraction form
    12,176.42/18,253.66 = 4,379.75/x
  3. Step 3: Cross multiply
    12,176.42x = 18,253.66 × 4,379.75
  4. Step 4: Simplify right side
    12,176.42x = 79,946,467.39
  5. Step 5: Solve for x
    x = 79,946,467.39/12,176.42
  6. Step 6: Final answer
    x = 6,565.68

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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.