Home / 18,523.90-27,777.75-5,375.98

Finding the Fourth Proportional to 18,523.90, 27,777.75 and 5,375.98

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Solution

The fourth proportional to 18,523.90, 27,777.75 and 5,375.98 is: 8,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.90 : 27,777.75 = 5,375.98 : x
  2. Step 2: Convert to fraction form
    18,523.90/27,777.75 = 5,375.98/x
  3. Step 3: Cross multiply
    18,523.90x = 27,777.75 × 5,375.98
  4. Step 4: Simplify right side
    18,523.90x = 149,332,628.45
  5. Step 5: Solve for x
    x = 149,332,628.45/18,523.90
  6. Step 6: Final answer
    x = 8,061.62

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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.