Home / 18,121.50-25,008.03-10,164.24

Finding the Fourth Proportional to 18,121.50, 25,008.03 and 10,164.24

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Solution

The fourth proportional to 18,121.50, 25,008.03 and 10,164.24 is: 14,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.50 : 25,008.03 = 10,164.24 : x
  2. Step 2: Convert to fraction form
    18,121.50/25,008.03 = 10,164.24/x
  3. Step 3: Cross multiply
    18,121.50x = 25,008.03 × 10,164.24
  4. Step 4: Simplify right side
    18,121.50x = 254,187,618.85
  5. Step 5: Solve for x
    x = 254,187,618.85/18,121.50
  6. Step 6: Final answer
    x = 14,026.85

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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.