Home / 18,228.99-25,155.79-10,272.56

Finding the Fourth Proportional to 18,228.99, 25,155.79 and 10,272.56

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Solution

The fourth proportional to 18,228.99, 25,155.79 and 10,272.56 is: 14,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.99 : 25,155.79 = 10,272.56 : x
  2. Step 2: Convert to fraction form
    18,228.99/25,155.79 = 10,272.56/x
  3. Step 3: Cross multiply
    18,228.99x = 25,155.79 × 10,272.56
  4. Step 4: Simplify right side
    18,228.99x = 258,414,399.33
  5. Step 5: Solve for x
    x = 258,414,399.33/18,228.99
  6. Step 6: Final answer
    x = 14,176.01

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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.