Home / 15,986.82-22,063.14-8,912.28

Finding the Fourth Proportional to 15,986.82, 22,063.14 and 8,912.28

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Solution

The fourth proportional to 15,986.82, 22,063.14 and 8,912.28 is: 12,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.82 : 22,063.14 = 8,912.28 : x
  2. Step 2: Convert to fraction form
    15,986.82/22,063.14 = 8,912.28/x
  3. Step 3: Cross multiply
    15,986.82x = 22,063.14 × 8,912.28
  4. Step 4: Simplify right side
    15,986.82x = 196,632,881.36
  5. Step 5: Solve for x
    x = 196,632,881.36/15,986.82
  6. Step 6: Final answer
    x = 12,299.69

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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.