Home / 18,115.28-27,172.28-4,967.44

Finding the Fourth Proportional to 18,115.28, 27,172.28 and 4,967.44

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Solution

The fourth proportional to 18,115.28, 27,172.28 and 4,967.44 is: 7,450.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.28 : 27,172.28 = 4,967.44 : x
  2. Step 2: Convert to fraction form
    18,115.28/27,172.28 = 4,967.44/x
  3. Step 3: Cross multiply
    18,115.28x = 27,172.28 × 4,967.44
  4. Step 4: Simplify right side
    18,115.28x = 134,976,670.56
  5. Step 5: Solve for x
    x = 134,976,670.56/18,115.28
  6. Step 6: Final answer
    x = 7,450.98

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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.