Home / 18,324.28-25,287.58-9,940.84

Finding the Fourth Proportional to 18,324.28, 25,287.58 and 9,940.84

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Solution

The fourth proportional to 18,324.28, 25,287.58 and 9,940.84 is: 13,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.28 : 25,287.58 = 9,940.84 : x
  2. Step 2: Convert to fraction form
    18,324.28/25,287.58 = 9,940.84/x
  3. Step 3: Cross multiply
    18,324.28x = 25,287.58 × 9,940.84
  4. Step 4: Simplify right side
    18,324.28x = 251,379,786.77
  5. Step 5: Solve for x
    x = 251,379,786.77/18,324.28
  6. Step 6: Final answer
    x = 13,718.40

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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.