Home / 17,220.78-23,764.89-9,668.73

Finding the Fourth Proportional to 17,220.78, 23,764.89 and 9,668.73

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Solution

The fourth proportional to 17,220.78, 23,764.89 and 9,668.73 is: 13,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.78 : 23,764.89 = 9,668.73 : x
  2. Step 2: Convert to fraction form
    17,220.78/23,764.89 = 9,668.73/x
  3. Step 3: Cross multiply
    17,220.78x = 23,764.89 × 9,668.73
  4. Step 4: Simplify right side
    17,220.78x = 229,776,304.89
  5. Step 5: Solve for x
    x = 229,776,304.89/17,220.78
  6. Step 6: Final answer
    x = 13,342.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.