Home / 15,736.14-21,716.39-8,663.10

Finding the Fourth Proportional to 15,736.14, 21,716.39 and 8,663.10

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Solution

The fourth proportional to 15,736.14, 21,716.39 and 8,663.10 is: 11,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.14 : 21,716.39 = 8,663.10 : x
  2. Step 2: Convert to fraction form
    15,736.14/21,716.39 = 8,663.10/x
  3. Step 3: Cross multiply
    15,736.14x = 21,716.39 × 8,663.10
  4. Step 4: Simplify right side
    15,736.14x = 188,131,258.21
  5. Step 5: Solve for x
    x = 188,131,258.21/15,736.14
  6. Step 6: Final answer
    x = 11,955.36

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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.