Home / 18,121.61-25,007.51-10,163.66

Finding the Fourth Proportional to 18,121.61, 25,007.51 and 10,163.66

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Solution

The fourth proportional to 18,121.61, 25,007.51 and 10,163.66 is: 14,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.61 : 25,007.51 = 10,163.66 : x
  2. Step 2: Convert to fraction form
    18,121.61/25,007.51 = 10,163.66/x
  3. Step 3: Cross multiply
    18,121.61x = 25,007.51 × 10,163.66
  4. Step 4: Simplify right side
    18,121.61x = 254,167,829.09
  5. Step 5: Solve for x
    x = 254,167,829.09/18,121.61
  6. Step 6: Final answer
    x = 14,025.68

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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.