Home / 15,736.34-21,716.16-8,662.62

Finding the Fourth Proportional to 15,736.34, 21,716.16 and 8,662.62

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Solution

The fourth proportional to 15,736.34, 21,716.16 and 8,662.62 is: 11,954.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.34 : 21,716.16 = 8,662.62 : x
  2. Step 2: Convert to fraction form
    15,736.34/21,716.16 = 8,662.62/x
  3. Step 3: Cross multiply
    15,736.34x = 21,716.16 × 8,662.62
  4. Step 4: Simplify right side
    15,736.34x = 188,118,841.94
  5. Step 5: Solve for x
    x = 188,118,841.94/15,736.34
  6. Step 6: Final answer
    x = 11,954.42

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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.