Home / 18,121.32-25,008.36-10,163.10

Finding the Fourth Proportional to 18,121.32, 25,008.36 and 10,163.10

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Solution

The fourth proportional to 18,121.32, 25,008.36 and 10,163.10 is: 14,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.32 : 25,008.36 = 10,163.10 : x
  2. Step 2: Convert to fraction form
    18,121.32/25,008.36 = 10,163.10/x
  3. Step 3: Cross multiply
    18,121.32x = 25,008.36 × 10,163.10
  4. Step 4: Simplify right side
    18,121.32x = 254,162,463.52
  5. Step 5: Solve for x
    x = 254,162,463.52/18,121.32
  6. Step 6: Final answer
    x = 14,025.60

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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.