Home / 18,613.05-27,919.58-5,474.65

Finding the Fourth Proportional to 18,613.05, 27,919.58 and 5,474.65

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Solution

The fourth proportional to 18,613.05, 27,919.58 and 5,474.65 is: 8,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.05 : 27,919.58 = 5,474.65 : x
  2. Step 2: Convert to fraction form
    18,613.05/27,919.58 = 5,474.65/x
  3. Step 3: Cross multiply
    18,613.05x = 27,919.58 × 5,474.65
  4. Step 4: Simplify right side
    18,613.05x = 152,849,928.65
  5. Step 5: Solve for x
    x = 152,849,928.65/18,613.05
  6. Step 6: Final answer
    x = 8,211.98

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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.