Home / 18,255.71-25,192.94-11,181.98

Finding the Fourth Proportional to 18,255.71, 25,192.94 and 11,181.98

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Solution

The fourth proportional to 18,255.71, 25,192.94 and 11,181.98 is: 15,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.71 : 25,192.94 = 11,181.98 : x
  2. Step 2: Convert to fraction form
    18,255.71/25,192.94 = 11,181.98/x
  3. Step 3: Cross multiply
    18,255.71x = 25,192.94 × 11,181.98
  4. Step 4: Simplify right side
    18,255.71x = 281,706,958.29
  5. Step 5: Solve for x
    x = 281,706,958.29/18,255.71
  6. Step 6: Final answer
    x = 15,431.17

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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.