Home / 18,126.69-25,004.75-11,409.84

Finding the Fourth Proportional to 18,126.69, 25,004.75 and 11,409.84

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Solution

The fourth proportional to 18,126.69, 25,004.75 and 11,409.84 is: 15,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.69 : 25,004.75 = 11,409.84 : x
  2. Step 2: Convert to fraction form
    18,126.69/25,004.75 = 11,409.84/x
  3. Step 3: Cross multiply
    18,126.69x = 25,004.75 × 11,409.84
  4. Step 4: Simplify right side
    18,126.69x = 285,300,139.69
  5. Step 5: Solve for x
    x = 285,300,139.69/18,126.69
  6. Step 6: Final answer
    x = 15,739.23

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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.