Home / 15,701.73-21,668.57-8,628.15

Finding the Fourth Proportional to 15,701.73, 21,668.57 and 8,628.15

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Solution

The fourth proportional to 15,701.73, 21,668.57 and 8,628.15 is: 11,906.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.73 : 21,668.57 = 8,628.15 : x
  2. Step 2: Convert to fraction form
    15,701.73/21,668.57 = 8,628.15/x
  3. Step 3: Cross multiply
    15,701.73x = 21,668.57 × 8,628.15
  4. Step 4: Simplify right side
    15,701.73x = 186,959,672.25
  5. Step 5: Solve for x
    x = 186,959,672.25/15,701.73
  6. Step 6: Final answer
    x = 11,906.95

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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.