Home / 17,112.76-23,628.96-13,127.56

Finding the Fourth Proportional to 17,112.76, 23,628.96 and 13,127.56

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Solution

The fourth proportional to 17,112.76, 23,628.96 and 13,127.56 is: 18,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.76 : 23,628.96 = 13,127.56 : x
  2. Step 2: Convert to fraction form
    17,112.76/23,628.96 = 13,127.56/x
  3. Step 3: Cross multiply
    17,112.76x = 23,628.96 × 13,127.56
  4. Step 4: Simplify right side
    17,112.76x = 310,190,590.14
  5. Step 5: Solve for x
    x = 310,190,590.14/17,112.76
  6. Step 6: Final answer
    x = 18,126.27

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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.