Home / 18,280.46-27,418.80-7,185.62

Finding the Fourth Proportional to 18,280.46, 27,418.80 and 7,185.62

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Solution

The fourth proportional to 18,280.46, 27,418.80 and 7,185.62 is: 10,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.46 : 27,418.80 = 7,185.62 : x
  2. Step 2: Convert to fraction form
    18,280.46/27,418.80 = 7,185.62/x
  3. Step 3: Cross multiply
    18,280.46x = 27,418.80 × 7,185.62
  4. Step 4: Simplify right side
    18,280.46x = 197,021,077.66
  5. Step 5: Solve for x
    x = 197,021,077.66/18,280.46
  6. Step 6: Final answer
    x = 10,777.69

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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.