Home / 18,282.75-25,230.20-9,899.25

Finding the Fourth Proportional to 18,282.75, 25,230.20 and 9,899.25

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Solution

The fourth proportional to 18,282.75, 25,230.20 and 9,899.25 is: 13,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.75 : 25,230.20 = 9,899.25 : x
  2. Step 2: Convert to fraction form
    18,282.75/25,230.20 = 9,899.25/x
  3. Step 3: Cross multiply
    18,282.75x = 25,230.20 × 9,899.25
  4. Step 4: Simplify right side
    18,282.75x = 249,760,007.85
  5. Step 5: Solve for x
    x = 249,760,007.85/18,282.75
  6. Step 6: Final answer
    x = 13,660.97

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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.