Home / 18,323.75-25,286.91-9,940.25

Finding the Fourth Proportional to 18,323.75, 25,286.91 and 9,940.25

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Solution

The fourth proportional to 18,323.75, 25,286.91 and 9,940.25 is: 13,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.75 : 25,286.91 = 9,940.25 : x
  2. Step 2: Convert to fraction form
    18,323.75/25,286.91 = 9,940.25/x
  3. Step 3: Cross multiply
    18,323.75x = 25,286.91 × 9,940.25
  4. Step 4: Simplify right side
    18,323.75x = 251,358,207.13
  5. Step 5: Solve for x
    x = 251,358,207.13/18,323.75
  6. Step 6: Final answer
    x = 13,717.62

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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.