Home / 18,271.92-25,215.48-11,550.54

Finding the Fourth Proportional to 18,271.92, 25,215.48 and 11,550.54

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Solution

The fourth proportional to 18,271.92, 25,215.48 and 11,550.54 is: 15,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.92 : 25,215.48 = 11,550.54 : x
  2. Step 2: Convert to fraction form
    18,271.92/25,215.48 = 11,550.54/x
  3. Step 3: Cross multiply
    18,271.92x = 25,215.48 × 11,550.54
  4. Step 4: Simplify right side
    18,271.92x = 291,252,410.36
  5. Step 5: Solve for x
    x = 291,252,410.36/18,271.92
  6. Step 6: Final answer
    x = 15,939.89

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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.