Home / 15,736.83-21,716.91-8,663.25

Finding the Fourth Proportional to 15,736.83, 21,716.91 and 8,663.25

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Solution

The fourth proportional to 15,736.83, 21,716.91 and 8,663.25 is: 11,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,736.83 : 21,716.91 = 8,663.25 : x
  2. Step 2: Convert to fraction form
    15,736.83/21,716.91 = 8,663.25/x
  3. Step 3: Cross multiply
    15,736.83x = 21,716.91 × 8,663.25
  4. Step 4: Simplify right side
    15,736.83x = 188,139,102.00
  5. Step 5: Solve for x
    x = 188,139,102.00/15,736.83
  6. Step 6: Final answer
    x = 11,955.34

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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.