Home / 18,216.69-25,144.62-10,664.79

Finding the Fourth Proportional to 18,216.69, 25,144.62 and 10,664.79

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Solution

The fourth proportional to 18,216.69, 25,144.62 and 10,664.79 is: 14,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.69 : 25,144.62 = 10,664.79 : x
  2. Step 2: Convert to fraction form
    18,216.69/25,144.62 = 10,664.79/x
  3. Step 3: Cross multiply
    18,216.69x = 25,144.62 × 10,664.79
  4. Step 4: Simplify right side
    18,216.69x = 268,162,091.93
  5. Step 5: Solve for x
    x = 268,162,091.93/18,216.69
  6. Step 6: Final answer
    x = 14,720.68

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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.