Home / 19,662.48-27,131.58-11,163.15

Finding the Fourth Proportional to 19,662.48, 27,131.58 and 11,163.15

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Solution

The fourth proportional to 19,662.48, 27,131.58 and 11,163.15 is: 15,403.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.48 : 27,131.58 = 11,163.15 : x
  2. Step 2: Convert to fraction form
    19,662.48/27,131.58 = 11,163.15/x
  3. Step 3: Cross multiply
    19,662.48x = 27,131.58 × 11,163.15
  4. Step 4: Simplify right side
    19,662.48x = 302,873,897.28
  5. Step 5: Solve for x
    x = 302,873,897.28/19,662.48
  6. Step 6: Final answer
    x = 15,403.65

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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.