Home / 18,882.27-28,314.14-7,794.45

Finding the Fourth Proportional to 18,882.27, 28,314.14 and 7,794.45

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Solution

The fourth proportional to 18,882.27, 28,314.14 and 7,794.45 is: 11,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.27 : 28,314.14 = 7,794.45 : x
  2. Step 2: Convert to fraction form
    18,882.27/28,314.14 = 7,794.45/x
  3. Step 3: Cross multiply
    18,882.27x = 28,314.14 × 7,794.45
  4. Step 4: Simplify right side
    18,882.27x = 220,693,109.55
  5. Step 5: Solve for x
    x = 220,693,109.55/18,882.27
  6. Step 6: Final answer
    x = 11,687.85

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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.