Home / 18,292.80-25,226.73-12,618.48

Finding the Fourth Proportional to 18,292.80, 25,226.73 and 12,618.48

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Solution

The fourth proportional to 18,292.80, 25,226.73 and 12,618.48 is: 17,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.80 : 25,226.73 = 12,618.48 : x
  2. Step 2: Convert to fraction form
    18,292.80/25,226.73 = 12,618.48/x
  3. Step 3: Cross multiply
    18,292.80x = 25,226.73 × 12,618.48
  4. Step 4: Simplify right side
    18,292.80x = 318,322,987.97
  5. Step 5: Solve for x
    x = 318,322,987.97/18,292.80
  6. Step 6: Final answer
    x = 17,401.55

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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.