Home / 18,243.54-25,175.90-10,288.34

Finding the Fourth Proportional to 18,243.54, 25,175.90 and 10,288.34

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Solution

The fourth proportional to 18,243.54, 25,175.90 and 10,288.34 is: 14,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.54 : 25,175.90 = 10,288.34 : x
  2. Step 2: Convert to fraction form
    18,243.54/25,175.90 = 10,288.34/x
  3. Step 3: Cross multiply
    18,243.54x = 25,175.90 × 10,288.34
  4. Step 4: Simplify right side
    18,243.54x = 259,018,041.68
  5. Step 5: Solve for x
    x = 259,018,041.68/18,243.54
  6. Step 6: Final answer
    x = 14,197.80

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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.