Home / 18,122.23-27,172.41-8,125.16

Finding the Fourth Proportional to 18,122.23, 27,172.41 and 8,125.16

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Solution

The fourth proportional to 18,122.23, 27,172.41 and 8,125.16 is: 12,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.23 : 27,172.41 = 8,125.16 : x
  2. Step 2: Convert to fraction form
    18,122.23/27,172.41 = 8,125.16/x
  3. Step 3: Cross multiply
    18,122.23x = 27,172.41 × 8,125.16
  4. Step 4: Simplify right side
    18,122.23x = 220,780,088.93
  5. Step 5: Solve for x
    x = 220,780,088.93/18,122.23
  6. Step 6: Final answer
    x = 12,182.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.