Home / 18,128.92-25,018.68-10,170.96

Finding the Fourth Proportional to 18,128.92, 25,018.68 and 10,170.96

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Solution

The fourth proportional to 18,128.92, 25,018.68 and 10,170.96 is: 14,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.92 : 25,018.68 = 10,170.96 : x
  2. Step 2: Convert to fraction form
    18,128.92/25,018.68 = 10,170.96/x
  3. Step 3: Cross multiply
    18,128.92x = 25,018.68 × 10,170.96
  4. Step 4: Simplify right side
    18,128.92x = 254,463,993.53
  5. Step 5: Solve for x
    x = 254,463,993.53/18,128.92
  6. Step 6: Final answer
    x = 14,036.36

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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.