Home / 15,701.75-21,668.31-9,414.12

Finding the Fourth Proportional to 15,701.75, 21,668.31 and 9,414.12

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Solution

The fourth proportional to 15,701.75, 21,668.31 and 9,414.12 is: 12,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.75 : 21,668.31 = 9,414.12 : x
  2. Step 2: Convert to fraction form
    15,701.75/21,668.31 = 9,414.12/x
  3. Step 3: Cross multiply
    15,701.75x = 21,668.31 × 9,414.12
  4. Step 4: Simplify right side
    15,701.75x = 203,988,070.54
  5. Step 5: Solve for x
    x = 203,988,070.54/15,701.75
  6. Step 6: Final answer
    x = 12,991.42

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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.