Home / 12,979.26-19,476.30-5,082.42

Finding the Fourth Proportional to 12,979.26, 19,476.30 and 5,082.42

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Solution

The fourth proportional to 12,979.26, 19,476.30 and 5,082.42 is: 7,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.26 : 19,476.30 = 5,082.42 : x
  2. Step 2: Convert to fraction form
    12,979.26/19,476.30 = 5,082.42/x
  3. Step 3: Cross multiply
    12,979.26x = 19,476.30 × 5,082.42
  4. Step 4: Simplify right side
    12,979.26x = 98,986,736.65
  5. Step 5: Solve for x
    x = 98,986,736.65/12,979.26
  6. Step 6: Final answer
    x = 7,626.53

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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.