Home / 12,979.53-19,470.92-5,081.03

Finding the Fourth Proportional to 12,979.53, 19,470.92 and 5,081.03

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Solution

The fourth proportional to 12,979.53, 19,470.92 and 5,081.03 is: 7,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.53 : 19,470.92 = 5,081.03 : x
  2. Step 2: Convert to fraction form
    12,979.53/19,470.92 = 5,081.03/x
  3. Step 3: Cross multiply
    12,979.53x = 19,470.92 × 5,081.03
  4. Step 4: Simplify right side
    12,979.53x = 98,932,292.67
  5. Step 5: Solve for x
    x = 98,932,292.67/12,979.53
  6. Step 6: Final answer
    x = 7,622.18

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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.