Home / 17,979.45-26,964.86-9,209.85

Finding the Fourth Proportional to 17,979.45, 26,964.86 and 9,209.85

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Solution

The fourth proportional to 17,979.45, 26,964.86 and 9,209.85 is: 13,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.45 : 26,964.86 = 9,209.85 : x
  2. Step 2: Convert to fraction form
    17,979.45/26,964.86 = 9,209.85/x
  3. Step 3: Cross multiply
    17,979.45x = 26,964.86 × 9,209.85
  4. Step 4: Simplify right side
    17,979.45x = 248,342,269.82
  5. Step 5: Solve for x
    x = 248,342,269.82/17,979.45
  6. Step 6: Final answer
    x = 13,812.56

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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.