Home / 18,240.09-25,168.10-10,282.32

Finding the Fourth Proportional to 18,240.09, 25,168.10 and 10,282.32

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Solution

The fourth proportional to 18,240.09, 25,168.10 and 10,282.32 is: 14,187.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.09 : 25,168.10 = 10,282.32 : x
  2. Step 2: Convert to fraction form
    18,240.09/25,168.10 = 10,282.32/x
  3. Step 3: Cross multiply
    18,240.09x = 25,168.10 × 10,282.32
  4. Step 4: Simplify right side
    18,240.09x = 258,786,371.94
  5. Step 5: Solve for x
    x = 258,786,371.94/18,240.09
  6. Step 6: Final answer
    x = 14,187.78

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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.