Home / 18,561.89-25,604.07-11,003.16

Finding the Fourth Proportional to 18,561.89, 25,604.07 and 11,003.16

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Solution

The fourth proportional to 18,561.89, 25,604.07 and 11,003.16 is: 15,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.89 : 25,604.07 = 11,003.16 : x
  2. Step 2: Convert to fraction form
    18,561.89/25,604.07 = 11,003.16/x
  3. Step 3: Cross multiply
    18,561.89x = 25,604.07 × 11,003.16
  4. Step 4: Simplify right side
    18,561.89x = 281,725,678.86
  5. Step 5: Solve for x
    x = 281,725,678.86/18,561.89
  6. Step 6: Final answer
    x = 15,177.64

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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.